Home / 8,929.86-13,397.01-2,689.73

Finding the Fourth Proportional to 8,929.86, 13,397.01 and 2,689.73

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Solution

The fourth proportional to 8,929.86, 13,397.01 and 2,689.73 is: 4,035.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,929.86 : 13,397.01 = 2,689.73 : x
  2. Step 2: Convert to fraction form
    8,929.86/13,397.01 = 2,689.73/x
  3. Step 3: Cross multiply
    8,929.86x = 13,397.01 × 2,689.73
  4. Step 4: Simplify right side
    8,929.86x = 36,034,339.71
  5. Step 5: Solve for x
    x = 36,034,339.71/8,929.86
  6. Step 6: Final answer
    x = 4,035.26

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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.