Home / 8,528.95-11,759.34-7,114.69

Finding the Fourth Proportional to 8,528.95, 11,759.34 and 7,114.69

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Solution

The fourth proportional to 8,528.95, 11,759.34 and 7,114.69 is: 9,809.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,528.95 : 11,759.34 = 7,114.69 : x
  2. Step 2: Convert to fraction form
    8,528.95/11,759.34 = 7,114.69/x
  3. Step 3: Cross multiply
    8,528.95x = 11,759.34 × 7,114.69
  4. Step 4: Simplify right side
    8,528.95x = 83,664,058.70
  5. Step 5: Solve for x
    x = 83,664,058.70/8,528.95
  6. Step 6: Final answer
    x = 9,809.42

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Double scale
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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.