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Finding the Fourth Proportional to 8,932.32, 13,403.52 and 8,861.76

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Solution

The fourth proportional to 8,932.32, 13,403.52 and 8,861.76 is: 13,297.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,932.32 : 13,403.52 = 8,861.76 : x
  2. Step 2: Convert to fraction form
    8,932.32/13,403.52 = 8,861.76/x
  3. Step 3: Cross multiply
    8,932.32x = 13,403.52 × 8,861.76
  4. Step 4: Simplify right side
    8,932.32x = 118,778,777.40
  5. Step 5: Solve for x
    x = 118,778,777.40/8,932.32
  6. Step 6: Final answer
    x = 13,297.64

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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.