Home / 18,414.42-25,414.40-10,862.88

Finding the Fourth Proportional to 18,414.42, 25,414.40 and 10,862.88

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Solution

The fourth proportional to 18,414.42, 25,414.40 and 10,862.88 is: 14,992.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,414.42 : 25,414.40 = 10,862.88 : x
  2. Step 2: Convert to fraction form
    18,414.42/25,414.40 = 10,862.88/x
  3. Step 3: Cross multiply
    18,414.42x = 25,414.40 × 10,862.88
  4. Step 4: Simplify right side
    18,414.42x = 276,073,577.47
  5. Step 5: Solve for x
    x = 276,073,577.47/18,414.42
  6. Step 6: Final answer
    x = 14,992.25

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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.