Home / 8,474.40-12,711.60-5,521.95

Finding the Fourth Proportional to 8,474.40, 12,711.60 and 5,521.95

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Solution

The fourth proportional to 8,474.40, 12,711.60 and 5,521.95 is: 8,282.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,474.40 : 12,711.60 = 5,521.95 : x
  2. Step 2: Convert to fraction form
    8,474.40/12,711.60 = 5,521.95/x
  3. Step 3: Cross multiply
    8,474.40x = 12,711.60 × 5,521.95
  4. Step 4: Simplify right side
    8,474.40x = 70,192,819.62
  5. Step 5: Solve for x
    x = 70,192,819.62/8,474.40
  6. Step 6: Final answer
    x = 8,282.93

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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.