Home / 8,140.68-12,194.28-6,285.24

Finding the Fourth Proportional to 8,140.68, 12,194.28 and 6,285.24

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Solution

The fourth proportional to 8,140.68, 12,194.28 and 6,285.24 is: 9,414.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140.68 : 12,194.28 = 6,285.24 : x
  2. Step 2: Convert to fraction form
    8,140.68/12,194.28 = 6,285.24/x
  3. Step 3: Cross multiply
    8,140.68x = 12,194.28 × 6,285.24
  4. Step 4: Simplify right side
    8,140.68x = 76,643,976.43
  5. Step 5: Solve for x
    x = 76,643,976.43/8,140.68
  6. Step 6: Final answer
    x = 9,414.94

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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.