Home / 12,576.38-18,863.98-3,691.35

Finding the Fourth Proportional to 12,576.38, 18,863.98 and 3,691.35

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Solution

The fourth proportional to 12,576.38, 18,863.98 and 3,691.35 is: 5,536.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,576.38 : 18,863.98 = 3,691.35 : x
  2. Step 2: Convert to fraction form
    12,576.38/18,863.98 = 3,691.35/x
  3. Step 3: Cross multiply
    12,576.38x = 18,863.98 × 3,691.35
  4. Step 4: Simplify right side
    12,576.38x = 69,633,543.34
  5. Step 5: Solve for x
    x = 69,633,543.34/12,576.38
  6. Step 6: Final answer
    x = 5,536.85

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1.5x scale

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.