Home / 6,761.20-10,141.68-5,653.12

Finding the Fourth Proportional to 6,761.20, 10,141.68 and 5,653.12

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Solution

The fourth proportional to 6,761.20, 10,141.68 and 5,653.12 is: 8,479.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,761.20 : 10,141.68 = 5,653.12 : x
  2. Step 2: Convert to fraction form
    6,761.20/10,141.68 = 5,653.12/x
  3. Step 3: Cross multiply
    6,761.20x = 10,141.68 × 5,653.12
  4. Step 4: Simplify right side
    6,761.20x = 57,332,134.04
  5. Step 5: Solve for x
    x = 57,332,134.04/6,761.20
  6. Step 6: Final answer
    x = 8,479.58

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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.