Home / 8,319.20-12,474.58-2,770.56

Finding the Fourth Proportional to 8,319.20, 12,474.58 and 2,770.56

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Solution

The fourth proportional to 8,319.20, 12,474.58 and 2,770.56 is: 4,154.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,319.20 : 12,474.58 = 2,770.56 : x
  2. Step 2: Convert to fraction form
    8,319.20/12,474.58 = 2,770.56/x
  3. Step 3: Cross multiply
    8,319.20x = 12,474.58 × 2,770.56
  4. Step 4: Simplify right side
    8,319.20x = 34,561,572.36
  5. Step 5: Solve for x
    x = 34,561,572.36/8,319.20
  6. Step 6: Final answer
    x = 4,154.43

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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.