Home / 8,613.38-12,921.36-3,683

Finding the Fourth Proportional to 8,613.38, 12,921.36 and 3,683

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Solution

The fourth proportional to 8,613.38, 12,921.36 and 3,683 is: 5,525.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,613.38 : 12,921.36 = 3,683 : x
  2. Step 2: Convert to fraction form
    8,613.38/12,921.36 = 3,683/x
  3. Step 3: Cross multiply
    8,613.38x = 12,921.36 × 3,683
  4. Step 4: Simplify right side
    8,613.38x = 47,589,368.88
  5. Step 5: Solve for x
    x = 47,589,368.88/8,613.38
  6. Step 6: Final answer
    x = 5,525.05

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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.