Home / 18,735.75-28,104.17-5,587.83

Finding the Fourth Proportional to 18,735.75, 28,104.17 and 5,587.83

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Solution

The fourth proportional to 18,735.75, 28,104.17 and 5,587.83 is: 8,381.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,735.75 : 28,104.17 = 5,587.83 : x
  2. Step 2: Convert to fraction form
    18,735.75/28,104.17 = 5,587.83/x
  3. Step 3: Cross multiply
    18,735.75x = 28,104.17 × 5,587.83
  4. Step 4: Simplify right side
    18,735.75x = 157,041,296.31
  5. Step 5: Solve for x
    x = 157,041,296.31/18,735.75
  6. Step 6: Final answer
    x = 8,381.91

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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.