Home / 8,385.75-11,574.77-5,591.25

Finding the Fourth Proportional to 8,385.75, 11,574.77 and 5,591.25

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Solution

The fourth proportional to 8,385.75, 11,574.77 and 5,591.25 is: 7,717.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,385.75 : 11,574.77 = 5,591.25 : x
  2. Step 2: Convert to fraction form
    8,385.75/11,574.77 = 5,591.25/x
  3. Step 3: Cross multiply
    8,385.75x = 11,574.77 × 5,591.25
  4. Step 4: Simplify right side
    8,385.75x = 64,717,404.81
  5. Step 5: Solve for x
    x = 64,717,404.81/8,385.75
  6. Step 6: Final answer
    x = 7,717.55

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Find fourth proportional to 4,192.88, 5,787.38 and 2,795.63
Half scale
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Double scale
Find fourth proportional to 8,386.75, 11,576.15 and 5,592.25
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.