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Finding the Fourth Proportional to 8,047.76, 12,074.06 and 5,425.79

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Solution

The fourth proportional to 8,047.76, 12,074.06 and 5,425.79 is: 8,140.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,047.76 : 12,074.06 = 5,425.79 : x
  2. Step 2: Convert to fraction form
    8,047.76/12,074.06 = 5,425.79/x
  3. Step 3: Cross multiply
    8,047.76x = 12,074.06 × 5,425.79
  4. Step 4: Simplify right side
    8,047.76x = 65,511,267.20
  5. Step 5: Solve for x
    x = 65,511,267.20/8,047.76
  6. Step 6: Final answer
    x = 8,140.32

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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.