Home / 12,376.08-18,565.92-3,609.90

Finding the Fourth Proportional to 12,376.08, 18,565.92 and 3,609.90

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Solution

The fourth proportional to 12,376.08, 18,565.92 and 3,609.90 is: 5,415.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,376.08 : 18,565.92 = 3,609.90 : x
  2. Step 2: Convert to fraction form
    12,376.08/18,565.92 = 3,609.90/x
  3. Step 3: Cross multiply
    12,376.08x = 18,565.92 × 3,609.90
  4. Step 4: Simplify right side
    12,376.08x = 67,021,114.61
  5. Step 5: Solve for x
    x = 67,021,114.61/12,376.08
  6. Step 6: Final answer
    x = 5,415.38

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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.