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Finding the Fourth Proportional to 15,371.76, 23,062.48 and 8,451.12

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Solution

The fourth proportional to 15,371.76, 23,062.48 and 8,451.12 is: 12,679.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,371.76 : 23,062.48 = 8,451.12 : x
  2. Step 2: Convert to fraction form
    15,371.76/23,062.48 = 8,451.12/x
  3. Step 3: Cross multiply
    15,371.76x = 23,062.48 × 8,451.12
  4. Step 4: Simplify right side
    15,371.76x = 194,903,785.98
  5. Step 5: Solve for x
    x = 194,903,785.98/15,371.76
  6. Step 6: Final answer
    x = 12,679.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.