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Finding the Fourth Proportional to 15,016.55, 20,714.99 and 9,350.39

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Solution

The fourth proportional to 15,016.55, 20,714.99 and 9,350.39 is: 12,898.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,016.55 : 20,714.99 = 9,350.39 : x
  2. Step 2: Convert to fraction form
    15,016.55/20,714.99 = 9,350.39/x
  3. Step 3: Cross multiply
    15,016.55x = 20,714.99 × 9,350.39
  4. Step 4: Simplify right side
    15,016.55x = 193,693,085.02
  5. Step 5: Solve for x
    x = 193,693,085.02/15,016.55
  6. Step 6: Final answer
    x = 12,898.65

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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.