Home / 8,929.59-13,394.62-2,689.81

Finding the Fourth Proportional to 8,929.59, 13,394.62 and 2,689.81

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Solution

The fourth proportional to 8,929.59, 13,394.62 and 2,689.81 is: 4,034.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,929.59 : 13,394.62 = 2,689.81 : x
  2. Step 2: Convert to fraction form
    8,929.59/13,394.62 = 2,689.81/x
  3. Step 3: Cross multiply
    8,929.59x = 13,394.62 × 2,689.81
  4. Step 4: Simplify right side
    8,929.59x = 36,028,937.57
  5. Step 5: Solve for x
    x = 36,028,937.57/8,929.59
  6. Step 6: Final answer
    x = 4,034.78

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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.