Home / 18,240.30-27,359.55-7,149.06

Finding the Fourth Proportional to 18,240.30, 27,359.55 and 7,149.06

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Solution

The fourth proportional to 18,240.30, 27,359.55 and 7,149.06 is: 10,723.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,240.30 : 27,359.55 = 7,149.06 : x
  2. Step 2: Convert to fraction form
    18,240.30/27,359.55 = 7,149.06/x
  3. Step 3: Cross multiply
    18,240.30x = 27,359.55 × 7,149.06
  4. Step 4: Simplify right side
    18,240.30x = 195,595,064.52
  5. Step 5: Solve for x
    x = 195,595,064.52/18,240.30
  6. Step 6: Final answer
    x = 10,723.24

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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.