Home / 18,934.24-28,399.20-7,247.20

Finding the Fourth Proportional to 18,934.24, 28,399.20 and 7,247.20

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Solution

The fourth proportional to 18,934.24, 28,399.20 and 7,247.20 is: 10,869.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,934.24 : 28,399.20 = 7,247.20 : x
  2. Step 2: Convert to fraction form
    18,934.24/28,399.20 = 7,247.20/x
  3. Step 3: Cross multiply
    18,934.24x = 28,399.20 × 7,247.20
  4. Step 4: Simplify right side
    18,934.24x = 205,814,682.24
  5. Step 5: Solve for x
    x = 205,814,682.24/18,934.24
  6. Step 6: Final answer
    x = 10,869.97

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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.