Home / 8,086.18-12,129.27-2,242.79

Finding the Fourth Proportional to 8,086.18, 12,129.27 and 2,242.79

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Solution

The fourth proportional to 8,086.18, 12,129.27 and 2,242.79 is: 3,364.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,086.18 : 12,129.27 = 2,242.79 : x
  2. Step 2: Convert to fraction form
    8,086.18/12,129.27 = 2,242.79/x
  3. Step 3: Cross multiply
    8,086.18x = 12,129.27 × 2,242.79
  4. Step 4: Simplify right side
    8,086.18x = 27,203,405.46
  5. Step 5: Solve for x
    x = 27,203,405.46/8,086.18
  6. Step 6: Final answer
    x = 3,364.19

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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.