Home / 18,403.68-25,398.24-10,442.88

Finding the Fourth Proportional to 18,403.68, 25,398.24 and 10,442.88

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Solution

The fourth proportional to 18,403.68, 25,398.24 and 10,442.88 is: 14,411.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,403.68 : 25,398.24 = 10,442.88 : x
  2. Step 2: Convert to fraction form
    18,403.68/25,398.24 = 10,442.88/x
  3. Step 3: Cross multiply
    18,403.68x = 25,398.24 × 10,442.88
  4. Step 4: Simplify right side
    18,403.68x = 265,230,772.53
  5. Step 5: Solve for x
    x = 265,230,772.53/18,403.68
  6. Step 6: Final answer
    x = 14,411.83

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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.