Home / 11,475.22-15,841.05-8,821.70

Finding the Fourth Proportional to 11,475.22, 15,841.05 and 8,821.70

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Solution

The fourth proportional to 11,475.22, 15,841.05 and 8,821.70 is: 12,177.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,475.22 : 15,841.05 = 8,821.70 : x
  2. Step 2: Convert to fraction form
    11,475.22/15,841.05 = 8,821.70/x
  3. Step 3: Cross multiply
    11,475.22x = 15,841.05 × 8,821.70
  4. Step 4: Simplify right side
    11,475.22x = 139,744,990.79
  5. Step 5: Solve for x
    x = 139,744,990.79/11,475.22
  6. Step 6: Final answer
    x = 12,177.98

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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.