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Finding the Fourth Proportional to 9,249.76, 12,765.01 and 5,270.77

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Solution

The fourth proportional to 9,249.76, 12,765.01 and 5,270.77 is: 7,273.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,249.76 : 12,765.01 = 5,270.77 : x
  2. Step 2: Convert to fraction form
    9,249.76/12,765.01 = 5,270.77/x
  3. Step 3: Cross multiply
    9,249.76x = 12,765.01 × 5,270.77
  4. Step 4: Simplify right side
    9,249.76x = 67,281,367.93
  5. Step 5: Solve for x
    x = 67,281,367.93/9,249.76
  6. Step 6: Final answer
    x = 7,273.85

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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.