Home / 18,132.30-27,195.21-4,981.77

Finding the Fourth Proportional to 18,132.30, 27,195.21 and 4,981.77

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Solution

The fourth proportional to 18,132.30, 27,195.21 and 4,981.77 is: 7,471.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,132.30 : 27,195.21 = 4,981.77 : x
  2. Step 2: Convert to fraction form
    18,132.30/27,195.21 = 4,981.77/x
  3. Step 3: Cross multiply
    18,132.30x = 27,195.21 × 4,981.77
  4. Step 4: Simplify right side
    18,132.30x = 135,480,281.32
  5. Step 5: Solve for x
    x = 135,480,281.32/18,132.30
  6. Step 6: Final answer
    x = 7,471.76

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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.