Home / 12,631.22-17,431.20-6,966.19

Finding the Fourth Proportional to 12,631.22, 17,431.20 and 6,966.19

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Solution

The fourth proportional to 12,631.22, 17,431.20 and 6,966.19 is: 9,613.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,631.22 : 17,431.20 = 6,966.19 : x
  2. Step 2: Convert to fraction form
    12,631.22/17,431.20 = 6,966.19/x
  3. Step 3: Cross multiply
    12,631.22x = 17,431.20 × 6,966.19
  4. Step 4: Simplify right side
    12,631.22x = 121,428,974.87
  5. Step 5: Solve for x
    x = 121,428,974.87/12,631.22
  6. Step 6: Final answer
    x = 9,613.40

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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.