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Finding the Fourth Proportional to 8,371.76, 12,557.74 and 2,528.42

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Solution

The fourth proportional to 8,371.76, 12,557.74 and 2,528.42 is: 3,792.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,371.76 : 12,557.74 = 2,528.42 : x
  2. Step 2: Convert to fraction form
    8,371.76/12,557.74 = 2,528.42/x
  3. Step 3: Cross multiply
    8,371.76x = 12,557.74 × 2,528.42
  4. Step 4: Simplify right side
    8,371.76x = 31,751,240.97
  5. Step 5: Solve for x
    x = 31,751,240.97/8,371.76
  6. Step 6: Final answer
    x = 3,792.66

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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.