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Finding the Fourth Proportional to 8,613.17, 12,916.41 and 3,347.48

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Solution

The fourth proportional to 8,613.17, 12,916.41 and 3,347.48 is: 5,019.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,613.17 : 12,916.41 = 3,347.48 : x
  2. Step 2: Convert to fraction form
    8,613.17/12,916.41 = 3,347.48/x
  3. Step 3: Cross multiply
    8,613.17x = 12,916.41 × 3,347.48
  4. Step 4: Simplify right side
    8,613.17x = 43,237,420.34
  5. Step 5: Solve for x
    x = 43,237,420.34/8,613.17
  6. Step 6: Final answer
    x = 5,019.92

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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.