Home / 12,513.28-17,260.68-9,676.12

Finding the Fourth Proportional to 12,513.28, 17,260.68 and 9,676.12

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Solution

The fourth proportional to 12,513.28, 17,260.68 and 9,676.12 is: 13,347.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,513.28 : 17,260.68 = 9,676.12 : x
  2. Step 2: Convert to fraction form
    12,513.28/17,260.68 = 9,676.12/x
  3. Step 3: Cross multiply
    12,513.28x = 17,260.68 × 9,676.12
  4. Step 4: Simplify right side
    12,513.28x = 167,016,410.96
  5. Step 5: Solve for x
    x = 167,016,410.96/12,513.28
  6. Step 6: Final answer
    x = 13,347.13

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Double scale
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Similar ratio
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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.