Home / 9,910.42-13,691.25-6,515.53

Finding the Fourth Proportional to 9,910.42, 13,691.25 and 6,515.53

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Solution

The fourth proportional to 9,910.42, 13,691.25 and 6,515.53 is: 9,001.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,910.42 : 13,691.25 = 6,515.53 : x
  2. Step 2: Convert to fraction form
    9,910.42/13,691.25 = 6,515.53/x
  3. Step 3: Cross multiply
    9,910.42x = 13,691.25 × 6,515.53
  4. Step 4: Simplify right side
    9,910.42x = 89,205,750.11
  5. Step 5: Solve for x
    x = 89,205,750.11/9,910.42
  6. Step 6: Final answer
    x = 9,001.21

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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.