Home / 8,531.92-12,802.74-2,986.46

Finding the Fourth Proportional to 8,531.92, 12,802.74 and 2,986.46

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Solution

The fourth proportional to 8,531.92, 12,802.74 and 2,986.46 is: 4,481.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,531.92 : 12,802.74 = 2,986.46 : x
  2. Step 2: Convert to fraction form
    8,531.92/12,802.74 = 2,986.46/x
  3. Step 3: Cross multiply
    8,531.92x = 12,802.74 × 2,986.46
  4. Step 4: Simplify right side
    8,531.92x = 38,234,870.90
  5. Step 5: Solve for x
    x = 38,234,870.90/8,531.92
  6. Step 6: Final answer
    x = 4,481.39

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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.