Home / 18,081.72-27,122.58-4,933.80

Finding the Fourth Proportional to 18,081.72, 27,122.58 and 4,933.80

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Solution

The fourth proportional to 18,081.72, 27,122.58 and 4,933.80 is: 7,400.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,081.72 : 27,122.58 = 4,933.80 : x
  2. Step 2: Convert to fraction form
    18,081.72/27,122.58 = 4,933.80/x
  3. Step 3: Cross multiply
    18,081.72x = 27,122.58 × 4,933.80
  4. Step 4: Simplify right side
    18,081.72x = 133,817,385.20
  5. Step 5: Solve for x
    x = 133,817,385.20/18,081.72
  6. Step 6: Final answer
    x = 7,400.70

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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.