Home / 7,990.27-11,974.99-4,288.17

Finding the Fourth Proportional to 7,990.27, 11,974.99 and 4,288.17

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Solution

The fourth proportional to 7,990.27, 11,974.99 and 4,288.17 is: 6,426.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990.27 : 11,974.99 = 4,288.17 : x
  2. Step 2: Convert to fraction form
    7,990.27/11,974.99 = 4,288.17/x
  3. Step 3: Cross multiply
    7,990.27x = 11,974.99 × 4,288.17
  4. Step 4: Simplify right side
    7,990.27x = 51,350,711.55
  5. Step 5: Solve for x
    x = 51,350,711.55/7,990.27
  6. Step 6: Final answer
    x = 6,426.66

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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.