Home / 8,951.29-13,428.45-3,689.15

Finding the Fourth Proportional to 8,951.29, 13,428.45 and 3,689.15

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Solution

The fourth proportional to 8,951.29, 13,428.45 and 3,689.15 is: 5,534.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,951.29 : 13,428.45 = 3,689.15 : x
  2. Step 2: Convert to fraction form
    8,951.29/13,428.45 = 3,689.15/x
  3. Step 3: Cross multiply
    8,951.29x = 13,428.45 × 3,689.15
  4. Step 4: Simplify right side
    8,951.29x = 49,539,499.18
  5. Step 5: Solve for x
    x = 49,539,499.18/8,951.29
  6. Step 6: Final answer
    x = 5,534.34

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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.