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Finding the Fourth Proportional to 18,158.10, 27,237.15 and 10,367.70

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Solution

The fourth proportional to 18,158.10, 27,237.15 and 10,367.70 is: 15,551.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,158.10 : 27,237.15 = 10,367.70 : x
  2. Step 2: Convert to fraction form
    18,158.10/27,237.15 = 10,367.70/x
  3. Step 3: Cross multiply
    18,158.10x = 27,237.15 × 10,367.70
  4. Step 4: Simplify right side
    18,158.10x = 282,386,600.06
  5. Step 5: Solve for x
    x = 282,386,600.06/18,158.10
  6. Step 6: Final answer
    x = 15,551.55

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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.