Home / 18,171.06-27,255.80-5,690.81

Finding the Fourth Proportional to 18,171.06, 27,255.80 and 5,690.81

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Solution

The fourth proportional to 18,171.06, 27,255.80 and 5,690.81 is: 8,535.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,171.06 : 27,255.80 = 5,690.81 : x
  2. Step 2: Convert to fraction form
    18,171.06/27,255.80 = 5,690.81/x
  3. Step 3: Cross multiply
    18,171.06x = 27,255.80 × 5,690.81
  4. Step 4: Simplify right side
    18,171.06x = 155,107,414.46
  5. Step 5: Solve for x
    x = 155,107,414.46/18,171.06
  6. Step 6: Final answer
    x = 8,535.96

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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.