Home / 14,659.43-20,229.52-8,687.55

Finding the Fourth Proportional to 14,659.43, 20,229.52 and 8,687.55

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Solution

The fourth proportional to 14,659.43, 20,229.52 and 8,687.55 is: 11,988.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,659.43 : 20,229.52 = 8,687.55 : x
  2. Step 2: Convert to fraction form
    14,659.43/20,229.52 = 8,687.55/x
  3. Step 3: Cross multiply
    14,659.43x = 20,229.52 × 8,687.55
  4. Step 4: Simplify right side
    14,659.43x = 175,745,061.34
  5. Step 5: Solve for x
    x = 175,745,061.34/14,659.43
  6. Step 6: Final answer
    x = 11,988.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.