Home / 8,343.12-11,512.80-4,805.76

Finding the Fourth Proportional to 8,343.12, 11,512.80 and 4,805.76

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Solution

The fourth proportional to 8,343.12, 11,512.80 and 4,805.76 is: 6,631.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,343.12 : 11,512.80 = 4,805.76 : x
  2. Step 2: Convert to fraction form
    8,343.12/11,512.80 = 4,805.76/x
  3. Step 3: Cross multiply
    8,343.12x = 11,512.80 × 4,805.76
  4. Step 4: Simplify right side
    8,343.12x = 55,327,753.73
  5. Step 5: Solve for x
    x = 55,327,753.73/8,343.12
  6. Step 6: Final answer
    x = 6,631.54

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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.