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Finding the Fourth Proportional to 14,865.68, 20,514.63 and 8,151.42

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Solution

The fourth proportional to 14,865.68, 20,514.63 and 8,151.42 is: 11,248.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,865.68 : 20,514.63 = 8,151.42 : x
  2. Step 2: Convert to fraction form
    14,865.68/20,514.63 = 8,151.42/x
  3. Step 3: Cross multiply
    14,865.68x = 20,514.63 × 8,151.42
  4. Step 4: Simplify right side
    14,865.68x = 167,223,365.27
  5. Step 5: Solve for x
    x = 167,223,365.27/14,865.68
  6. Step 6: Final answer
    x = 11,248.95

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