Home / 18,521.68-27,785.26-5,372.35

Finding the Fourth Proportional to 18,521.68, 27,785.26 and 5,372.35

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Solution

The fourth proportional to 18,521.68, 27,785.26 and 5,372.35 is: 8,059.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,521.68 : 27,785.26 = 5,372.35 : x
  2. Step 2: Convert to fraction form
    18,521.68/27,785.26 = 5,372.35/x
  3. Step 3: Cross multiply
    18,521.68x = 27,785.26 × 5,372.35
  4. Step 4: Simplify right side
    18,521.68x = 149,272,141.56
  5. Step 5: Solve for x
    x = 149,272,141.56/18,521.68
  6. Step 6: Final answer
    x = 8,059.32

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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.