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Finding the Fourth Proportional to 6,613.55, 9,115.33 and 6,302.13

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Solution

The fourth proportional to 6,613.55, 9,115.33 and 6,302.13 is: 8,686.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,613.55 : 9,115.33 = 6,302.13 : x
  2. Step 2: Convert to fraction form
    6,613.55/9,115.33 = 6,302.13/x
  3. Step 3: Cross multiply
    6,613.55x = 9,115.33 × 6,302.13
  4. Step 4: Simplify right side
    6,613.55x = 57,445,994.65
  5. Step 5: Solve for x
    x = 57,445,994.65/6,613.55
  6. Step 6: Final answer
    x = 8,686.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.