Home / 12,132.44-16,722.61-8,349.20

Finding the Fourth Proportional to 12,132.44, 16,722.61 and 8,349.20

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Solution

The fourth proportional to 12,132.44, 16,722.61 and 8,349.20 is: 11,508.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,132.44 : 16,722.61 = 8,349.20 : x
  2. Step 2: Convert to fraction form
    12,132.44/16,722.61 = 8,349.20/x
  3. Step 3: Cross multiply
    12,132.44x = 16,722.61 × 8,349.20
  4. Step 4: Simplify right side
    12,132.44x = 139,620,310.93
  5. Step 5: Solve for x
    x = 139,620,310.93/12,132.44
  6. Step 6: Final answer
    x = 11,508.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.