Home / 18,528.66-27,792.18-5,380.74

Finding the Fourth Proportional to 18,528.66, 27,792.18 and 5,380.74

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Solution

The fourth proportional to 18,528.66, 27,792.18 and 5,380.74 is: 8,070.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,528.66 : 27,792.18 = 5,380.74 : x
  2. Step 2: Convert to fraction form
    18,528.66/27,792.18 = 5,380.74/x
  3. Step 3: Cross multiply
    18,528.66x = 27,792.18 × 5,380.74
  4. Step 4: Simplify right side
    18,528.66x = 149,542,494.61
  5. Step 5: Solve for x
    x = 149,542,494.61/18,528.66
  6. Step 6: Final answer
    x = 8,070.87

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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.