Home / 12,331.62-17,020.80-7,613.19

Finding the Fourth Proportional to 12,331.62, 17,020.80 and 7,613.19

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Solution

The fourth proportional to 12,331.62, 17,020.80 and 7,613.19 is: 10,508.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,331.62 : 17,020.80 = 7,613.19 : x
  2. Step 2: Convert to fraction form
    12,331.62/17,020.80 = 7,613.19/x
  3. Step 3: Cross multiply
    12,331.62x = 17,020.80 × 7,613.19
  4. Step 4: Simplify right side
    12,331.62x = 129,582,584.35
  5. Step 5: Solve for x
    x = 129,582,584.35/12,331.62
  6. Step 6: Final answer
    x = 10,508.16

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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.