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Finding the Fourth Proportional to 14,773.60, 20,385.06 and 8,805.16

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Solution

The fourth proportional to 14,773.60, 20,385.06 and 8,805.16 is: 12,149.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,773.60 : 20,385.06 = 8,805.16 : x
  2. Step 2: Convert to fraction form
    14,773.60/20,385.06 = 8,805.16/x
  3. Step 3: Cross multiply
    14,773.60x = 20,385.06 × 8,805.16
  4. Step 4: Simplify right side
    14,773.60x = 179,493,714.91
  5. Step 5: Solve for x
    x = 179,493,714.91/14,773.60
  6. Step 6: Final answer
    x = 12,149.63

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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.