Home / 18,211.18-25,131.15-10,253.38

Finding the Fourth Proportional to 18,211.18, 25,131.15 and 10,253.38

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Solution

The fourth proportional to 18,211.18, 25,131.15 and 10,253.38 is: 14,149.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,211.18 : 25,131.15 = 10,253.38 : x
  2. Step 2: Convert to fraction form
    18,211.18/25,131.15 = 10,253.38/x
  3. Step 3: Cross multiply
    18,211.18x = 25,131.15 × 10,253.38
  4. Step 4: Simplify right side
    18,211.18x = 257,679,230.79
  5. Step 5: Solve for x
    x = 257,679,230.79/18,211.18
  6. Step 6: Final answer
    x = 14,149.51

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Half scale
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Double scale
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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.