Home / 18,375.16-25,357.27-10,719.90

Finding the Fourth Proportional to 18,375.16, 25,357.27 and 10,719.90

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Solution

The fourth proportional to 18,375.16, 25,357.27 and 10,719.90 is: 14,793.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,375.16 : 25,357.27 = 10,719.90 : x
  2. Step 2: Convert to fraction form
    18,375.16/25,357.27 = 10,719.90/x
  3. Step 3: Cross multiply
    18,375.16x = 25,357.27 × 10,719.90
  4. Step 4: Simplify right side
    18,375.16x = 271,827,398.67
  5. Step 5: Solve for x
    x = 271,827,398.67/18,375.16
  6. Step 6: Final answer
    x = 14,793.20

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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.