Home / 12,508.80-18,757.67-3,742.04

Finding the Fourth Proportional to 12,508.80, 18,757.67 and 3,742.04

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Solution

The fourth proportional to 12,508.80, 18,757.67 and 3,742.04 is: 5,611.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,508.80 : 18,757.67 = 3,742.04 : x
  2. Step 2: Convert to fraction form
    12,508.80/18,757.67 = 3,742.04/x
  3. Step 3: Cross multiply
    12,508.80x = 18,757.67 × 3,742.04
  4. Step 4: Simplify right side
    12,508.80x = 70,191,838.95
  5. Step 5: Solve for x
    x = 70,191,838.95/12,508.80
  6. Step 6: Final answer
    x = 5,611.40

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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.