Home / 8,419.86-12,631.23-2,575.14

Finding the Fourth Proportional to 8,419.86, 12,631.23 and 2,575.14

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Solution

The fourth proportional to 8,419.86, 12,631.23 and 2,575.14 is: 3,863.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,419.86 : 12,631.23 = 2,575.14 : x
  2. Step 2: Convert to fraction form
    8,419.86/12,631.23 = 2,575.14/x
  3. Step 3: Cross multiply
    8,419.86x = 12,631.23 × 2,575.14
  4. Step 4: Simplify right side
    8,419.86x = 32,527,185.62
  5. Step 5: Solve for x
    x = 32,527,185.62/8,419.86
  6. Step 6: Final answer
    x = 3,863.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.