Home / 7,478.25-11,221.47-3,582.66

Finding the Fourth Proportional to 7,478.25, 11,221.47 and 3,582.66

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Solution

The fourth proportional to 7,478.25, 11,221.47 and 3,582.66 is: 5,375.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,478.25 : 11,221.47 = 3,582.66 : x
  2. Step 2: Convert to fraction form
    7,478.25/11,221.47 = 3,582.66/x
  3. Step 3: Cross multiply
    7,478.25x = 11,221.47 × 3,582.66
  4. Step 4: Simplify right side
    7,478.25x = 40,202,711.71
  5. Step 5: Solve for x
    x = 40,202,711.71/7,478.25
  6. Step 6: Final answer
    x = 5,375.95

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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.