Home / 8,231.28-12,320.16-6,039.48

Finding the Fourth Proportional to 8,231.28, 12,320.16 and 6,039.48

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Solution

The fourth proportional to 8,231.28, 12,320.16 and 6,039.48 is: 9,039.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231.28 : 12,320.16 = 6,039.48 : x
  2. Step 2: Convert to fraction form
    8,231.28/12,320.16 = 6,039.48/x
  3. Step 3: Cross multiply
    8,231.28x = 12,320.16 × 6,039.48
  4. Step 4: Simplify right side
    8,231.28x = 74,407,359.92
  5. Step 5: Solve for x
    x = 74,407,359.92/8,231.28
  6. Step 6: Final answer
    x = 9,039.59

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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.