Home / 8,130.16-12,190.92-3,743.88

Finding the Fourth Proportional to 8,130.16, 12,190.92 and 3,743.88

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Solution

The fourth proportional to 8,130.16, 12,190.92 and 3,743.88 is: 5,613.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130.16 : 12,190.92 = 3,743.88 : x
  2. Step 2: Convert to fraction form
    8,130.16/12,190.92 = 3,743.88/x
  3. Step 3: Cross multiply
    8,130.16x = 12,190.92 × 3,743.88
  4. Step 4: Simplify right side
    8,130.16x = 45,641,341.57
  5. Step 5: Solve for x
    x = 45,641,341.57/8,130.16
  6. Step 6: Final answer
    x = 5,613.83

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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.