Home / 18,103.12-24,982.92-10,145.68

Finding the Fourth Proportional to 18,103.12, 24,982.92 and 10,145.68

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Solution

The fourth proportional to 18,103.12, 24,982.92 and 10,145.68 is: 14,001.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,103.12 : 24,982.92 = 10,145.68 : x
  2. Step 2: Convert to fraction form
    18,103.12/24,982.92 = 10,145.68/x
  3. Step 3: Cross multiply
    18,103.12x = 24,982.92 × 10,145.68
  4. Step 4: Simplify right side
    18,103.12x = 253,468,711.79
  5. Step 5: Solve for x
    x = 253,468,711.79/18,103.12
  6. Step 6: Final answer
    x = 14,001.38

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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.