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Finding the Fourth Proportional to 12,508.92, 17,258.40 and 7,540.92

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Solution

The fourth proportional to 12,508.92, 17,258.40 and 7,540.92 is: 10,404.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,508.92 : 17,258.40 = 7,540.92 : x
  2. Step 2: Convert to fraction form
    12,508.92/17,258.40 = 7,540.92/x
  3. Step 3: Cross multiply
    12,508.92x = 17,258.40 × 7,540.92
  4. Step 4: Simplify right side
    12,508.92x = 130,144,213.73
  5. Step 5: Solve for x
    x = 130,144,213.73/12,508.92
  6. Step 6: Final answer
    x = 10,404.11

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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.