Home / 18,934.56-28,404.90-5,785.92

Finding the Fourth Proportional to 18,934.56, 28,404.90 and 5,785.92

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Solution

The fourth proportional to 18,934.56, 28,404.90 and 5,785.92 is: 8,679.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,934.56 : 28,404.90 = 5,785.92 : x
  2. Step 2: Convert to fraction form
    18,934.56/28,404.90 = 5,785.92/x
  3. Step 3: Cross multiply
    18,934.56x = 28,404.90 × 5,785.92
  4. Step 4: Simplify right side
    18,934.56x = 164,348,479.01
  5. Step 5: Solve for x
    x = 164,348,479.01/18,934.56
  6. Step 6: Final answer
    x = 8,679.82

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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.