Home / 8,086.20-12,131.32-6,426.59

Finding the Fourth Proportional to 8,086.20, 12,131.32 and 6,426.59

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Solution

The fourth proportional to 8,086.20, 12,131.32 and 6,426.59 is: 9,641.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,086.20 : 12,131.32 = 6,426.59 : x
  2. Step 2: Convert to fraction form
    8,086.20/12,131.32 = 6,426.59/x
  3. Step 3: Cross multiply
    8,086.20x = 12,131.32 × 6,426.59
  4. Step 4: Simplify right side
    8,086.20x = 77,963,023.36
  5. Step 5: Solve for x
    x = 77,963,023.36/8,086.20
  6. Step 6: Final answer
    x = 9,641.49

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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.