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Finding the Fourth Proportional to 18,616.60, 27,901.14 and 8,734.06

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Solution

The fourth proportional to 18,616.60, 27,901.14 and 8,734.06 is: 13,089.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,616.60 : 27,901.14 = 8,734.06 : x
  2. Step 2: Convert to fraction form
    18,616.60/27,901.14 = 8,734.06/x
  3. Step 3: Cross multiply
    18,616.60x = 27,901.14 × 8,734.06
  4. Step 4: Simplify right side
    18,616.60x = 243,690,230.83
  5. Step 5: Solve for x
    x = 243,690,230.83/18,616.60
  6. Step 6: Final answer
    x = 13,089.94

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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.