Home / 18,507.42-25,540.11-10,123.92

Finding the Fourth Proportional to 18,507.42, 25,540.11 and 10,123.92

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Solution

The fourth proportional to 18,507.42, 25,540.11 and 10,123.92 is: 13,970.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,507.42 : 25,540.11 = 10,123.92 : x
  2. Step 2: Convert to fraction form
    18,507.42/25,540.11 = 10,123.92/x
  3. Step 3: Cross multiply
    18,507.42x = 25,540.11 × 10,123.92
  4. Step 4: Simplify right side
    18,507.42x = 258,566,030.43
  5. Step 5: Solve for x
    x = 258,566,030.43/18,507.42
  6. Step 6: Final answer
    x = 13,970.94

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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.