Home / 8,112.75-11,195.61-4,386.75

Finding the Fourth Proportional to 8,112.75, 11,195.61 and 4,386.75

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Solution

The fourth proportional to 8,112.75, 11,195.61 and 4,386.75 is: 6,053.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112.75 : 11,195.61 = 4,386.75 : x
  2. Step 2: Convert to fraction form
    8,112.75/11,195.61 = 4,386.75/x
  3. Step 3: Cross multiply
    8,112.75x = 11,195.61 × 4,386.75
  4. Step 4: Simplify right side
    8,112.75x = 49,112,342.17
  5. Step 5: Solve for x
    x = 49,112,342.17/8,112.75
  6. Step 6: Final answer
    x = 6,053.72

Related Problems

Find fourth proportional to 4,056.38, 5,597.81 and 2,193.38
Half scale
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Double scale
Find fourth proportional to 8,113.75, 11,196.99 and 4,387.75
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.