Home / 18,139.01-27,198.59-5,655.69

Finding the Fourth Proportional to 18,139.01, 27,198.59 and 5,655.69

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Solution

The fourth proportional to 18,139.01, 27,198.59 and 5,655.69 is: 8,480.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139.01 : 27,198.59 = 5,655.69 : x
  2. Step 2: Convert to fraction form
    18,139.01/27,198.59 = 5,655.69/x
  3. Step 3: Cross multiply
    18,139.01x = 27,198.59 × 5,655.69
  4. Step 4: Simplify right side
    18,139.01x = 153,826,765.20
  5. Step 5: Solve for x
    x = 153,826,765.20/18,139.01
  6. Step 6: Final answer
    x = 8,480.44

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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.