Home / 8,086.16-12,131.19-3,407.51

Finding the Fourth Proportional to 8,086.16, 12,131.19 and 3,407.51

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Solution

The fourth proportional to 8,086.16, 12,131.19 and 3,407.51 is: 5,112.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,086.16 : 12,131.19 = 3,407.51 : x
  2. Step 2: Convert to fraction form
    8,086.16/12,131.19 = 3,407.51/x
  3. Step 3: Cross multiply
    8,086.16x = 12,131.19 × 3,407.51
  4. Step 4: Simplify right side
    8,086.16x = 41,337,151.24
  5. Step 5: Solve for x
    x = 41,337,151.24/8,086.16
  6. Step 6: Final answer
    x = 5,112.09

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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.