Home / 18,319.97-27,459.10-10,908.78

Finding the Fourth Proportional to 18,319.97, 27,459.10 and 10,908.78

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Solution

The fourth proportional to 18,319.97, 27,459.10 and 10,908.78 is: 16,350.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,319.97 : 27,459.10 = 10,908.78 : x
  2. Step 2: Convert to fraction form
    18,319.97/27,459.10 = 10,908.78/x
  3. Step 3: Cross multiply
    18,319.97x = 27,459.10 × 10,908.78
  4. Step 4: Simplify right side
    18,319.97x = 299,545,191.56
  5. Step 5: Solve for x
    x = 299,545,191.56/18,319.97
  6. Step 6: Final answer
    x = 16,350.74

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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.