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Finding the Fourth Proportional to 14,777.91, 20,397.02 and 8,493.93

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Solution

The fourth proportional to 14,777.91, 20,397.02 and 8,493.93 is: 11,723.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,777.91 : 20,397.02 = 8,493.93 : x
  2. Step 2: Convert to fraction form
    14,777.91/20,397.02 = 8,493.93/x
  3. Step 3: Cross multiply
    14,777.91x = 20,397.02 × 8,493.93
  4. Step 4: Simplify right side
    14,777.91x = 173,250,817.62
  5. Step 5: Solve for x
    x = 173,250,817.62/14,777.91
  6. Step 6: Final answer
    x = 11,723.63

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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.