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Finding the Fourth Proportional to 8,371.74, 12,559.95 and 2,528.40

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Solution

The fourth proportional to 8,371.74, 12,559.95 and 2,528.40 is: 3,793.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,371.74 : 12,559.95 = 2,528.40 : x
  2. Step 2: Convert to fraction form
    8,371.74/12,559.95 = 2,528.40/x
  3. Step 3: Cross multiply
    8,371.74x = 12,559.95 × 2,528.40
  4. Step 4: Simplify right side
    8,371.74x = 31,756,577.58
  5. Step 5: Solve for x
    x = 31,756,577.58/8,371.74
  6. Step 6: Final answer
    x = 3,793.31

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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.