Home / 10,618.38-14,654.07-7,087.50

Finding the Fourth Proportional to 10,618.38, 14,654.07 and 7,087.50

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Solution

The fourth proportional to 10,618.38, 14,654.07 and 7,087.50 is: 9,781.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,618.38 : 14,654.07 = 7,087.50 : x
  2. Step 2: Convert to fraction form
    10,618.38/14,654.07 = 7,087.50/x
  3. Step 3: Cross multiply
    10,618.38x = 14,654.07 × 7,087.50
  4. Step 4: Simplify right side
    10,618.38x = 103,860,721.13
  5. Step 5: Solve for x
    x = 103,860,721.13/10,618.38
  6. Step 6: Final answer
    x = 9,781.22

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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.