Home / 18,115.88-25,001.20-10,052.18

Finding the Fourth Proportional to 18,115.88, 25,001.20 and 10,052.18

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Solution

The fourth proportional to 18,115.88, 25,001.20 and 10,052.18 is: 13,872.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,115.88 : 25,001.20 = 10,052.18 : x
  2. Step 2: Convert to fraction form
    18,115.88/25,001.20 = 10,052.18/x
  3. Step 3: Cross multiply
    18,115.88x = 25,001.20 × 10,052.18
  4. Step 4: Simplify right side
    18,115.88x = 251,316,562.62
  5. Step 5: Solve for x
    x = 251,316,562.62/18,115.88
  6. Step 6: Final answer
    x = 13,872.72

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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.