Home / 10,354.07-15,538.86-7,587.78

Finding the Fourth Proportional to 10,354.07, 15,538.86 and 7,587.78

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Solution

The fourth proportional to 10,354.07, 15,538.86 and 7,587.78 is: 11,387.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,354.07 : 15,538.86 = 7,587.78 : x
  2. Step 2: Convert to fraction form
    10,354.07/15,538.86 = 7,587.78/x
  3. Step 3: Cross multiply
    10,354.07x = 15,538.86 × 7,587.78
  4. Step 4: Simplify right side
    10,354.07x = 117,905,451.13
  5. Step 5: Solve for x
    x = 117,905,451.13/10,354.07
  6. Step 6: Final answer
    x = 11,387.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.