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Finding the Fourth Proportional to 14,652.47, 21,978.71 and 9,731.72

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Solution

The fourth proportional to 14,652.47, 21,978.71 and 9,731.72 is: 14,597.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,652.47 : 21,978.71 = 9,731.72 : x
  2. Step 2: Convert to fraction form
    14,652.47/21,978.71 = 9,731.72/x
  3. Step 3: Cross multiply
    14,652.47x = 21,978.71 × 9,731.72
  4. Step 4: Simplify right side
    14,652.47x = 213,890,651.68
  5. Step 5: Solve for x
    x = 213,890,651.68/14,652.47
  6. Step 6: Final answer
    x = 14,597.58

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Similar ratio
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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.