Home / 18,890.50-28,336.92-5,743.84

Finding the Fourth Proportional to 18,890.50, 28,336.92 and 5,743.84

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Solution

The fourth proportional to 18,890.50, 28,336.92 and 5,743.84 is: 8,616.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,890.50 : 28,336.92 = 5,743.84 : x
  2. Step 2: Convert to fraction form
    18,890.50/28,336.92 = 5,743.84/x
  3. Step 3: Cross multiply
    18,890.50x = 28,336.92 × 5,743.84
  4. Step 4: Simplify right side
    18,890.50x = 162,762,734.57
  5. Step 5: Solve for x
    x = 162,762,734.57/18,890.50
  6. Step 6: Final answer
    x = 8,616.12

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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.