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Finding the Fourth Proportional to 8,060.80, 12,071.76 and 5,455.84

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Solution

The fourth proportional to 8,060.80, 12,071.76 and 5,455.84 is: 8,170.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,060.80 : 12,071.76 = 5,455.84 : x
  2. Step 2: Convert to fraction form
    8,060.80/12,071.76 = 5,455.84/x
  3. Step 3: Cross multiply
    8,060.80x = 12,071.76 × 5,455.84
  4. Step 4: Simplify right side
    8,060.80x = 65,861,591.08
  5. Step 5: Solve for x
    x = 65,861,591.08/8,060.80
  6. Step 6: Final answer
    x = 8,170.60

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1.5x scale

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.