Home / 8,287.43-12,432.14-2,742.35

Finding the Fourth Proportional to 8,287.43, 12,432.14 and 2,742.35

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Solution

The fourth proportional to 8,287.43, 12,432.14 and 2,742.35 is: 4,113.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,287.43 : 12,432.14 = 2,742.35 : x
  2. Step 2: Convert to fraction form
    8,287.43/12,432.14 = 2,742.35/x
  3. Step 3: Cross multiply
    8,287.43x = 12,432.14 × 2,742.35
  4. Step 4: Simplify right side
    8,287.43x = 34,093,203.26
  5. Step 5: Solve for x
    x = 34,093,203.26/8,287.43
  6. Step 6: Final answer
    x = 4,113.85

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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.