Home / 14,612.43-21,909.32-8,687.76

Finding the Fourth Proportional to 14,612.43, 21,909.32 and 8,687.76

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Solution

The fourth proportional to 14,612.43, 21,909.32 and 8,687.76 is: 13,026.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,612.43 : 21,909.32 = 8,687.76 : x
  2. Step 2: Convert to fraction form
    14,612.43/21,909.32 = 8,687.76/x
  3. Step 3: Cross multiply
    14,612.43x = 21,909.32 × 8,687.76
  4. Step 4: Simplify right side
    14,612.43x = 190,342,820.90
  5. Step 5: Solve for x
    x = 190,342,820.90/14,612.43
  6. Step 6: Final answer
    x = 13,026.09

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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.