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Finding the Fourth Proportional to 14,493.55, 21,721.04 and 9,489.58

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Solution

The fourth proportional to 14,493.55, 21,721.04 and 9,489.58 is: 14,221.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,493.55 : 21,721.04 = 9,489.58 : x
  2. Step 2: Convert to fraction form
    14,493.55/21,721.04 = 9,489.58/x
  3. Step 3: Cross multiply
    14,493.55x = 21,721.04 × 9,489.58
  4. Step 4: Simplify right side
    14,493.55x = 206,123,546.76
  5. Step 5: Solve for x
    x = 206,123,546.76/14,493.55
  6. Step 6: Final answer
    x = 14,221.74

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1.5x scale

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.