Home / 7,479.06-11,130.30-7,229.91

Finding the Fourth Proportional to 7,479.06, 11,130.30 and 7,229.91

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Solution

The fourth proportional to 7,479.06, 11,130.30 and 7,229.91 is: 10,759.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,479.06 : 11,130.30 = 7,229.91 : x
  2. Step 2: Convert to fraction form
    7,479.06/11,130.30 = 7,229.91/x
  3. Step 3: Cross multiply
    7,479.06x = 11,130.30 × 7,229.91
  4. Step 4: Simplify right side
    7,479.06x = 80,471,067.27
  5. Step 5: Solve for x
    x = 80,471,067.27/7,479.06
  6. Step 6: Final answer
    x = 10,759.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.