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Finding the Fourth Proportional to 18,080.15, 27,073.49 and 12,475.10

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Solution

The fourth proportional to 18,080.15, 27,073.49 and 12,475.10 is: 18,680.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,080.15 : 27,073.49 = 12,475.10 : x
  2. Step 2: Convert to fraction form
    18,080.15/27,073.49 = 12,475.10/x
  3. Step 3: Cross multiply
    18,080.15x = 27,073.49 × 12,475.10
  4. Step 4: Simplify right side
    18,080.15x = 337,744,418.29
  5. Step 5: Solve for x
    x = 337,744,418.29/18,080.15
  6. Step 6: Final answer
    x = 18,680.40

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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.