Home / 18,129.36-27,197.88-5,649.04

Finding the Fourth Proportional to 18,129.36, 27,197.88 and 5,649.04

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Solution

The fourth proportional to 18,129.36, 27,197.88 and 5,649.04 is: 8,474.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,129.36 : 27,197.88 = 5,649.04 : x
  2. Step 2: Convert to fraction form
    18,129.36/27,197.88 = 5,649.04/x
  3. Step 3: Cross multiply
    18,129.36x = 27,197.88 × 5,649.04
  4. Step 4: Simplify right side
    18,129.36x = 153,641,912.04
  5. Step 5: Solve for x
    x = 153,641,912.04/18,129.36
  6. Step 6: Final answer
    x = 8,474.76

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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.