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Finding the Fourth Proportional to 8,485.92, 12,695.76 and 7,500.96

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Solution

The fourth proportional to 8,485.92, 12,695.76 and 7,500.96 is: 11,222.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,485.92 : 12,695.76 = 7,500.96 : x
  2. Step 2: Convert to fraction form
    8,485.92/12,695.76 = 7,500.96/x
  3. Step 3: Cross multiply
    8,485.92x = 12,695.76 × 7,500.96
  4. Step 4: Simplify right side
    8,485.92x = 95,230,387.93
  5. Step 5: Solve for x
    x = 95,230,387.93/8,485.92
  6. Step 6: Final answer
    x = 11,222.16

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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.