Home / 11,320.88-15,622.20-6,540.66

Finding the Fourth Proportional to 11,320.88, 15,622.20 and 6,540.66

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Solution

The fourth proportional to 11,320.88, 15,622.20 and 6,540.66 is: 9,025.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,320.88 : 15,622.20 = 6,540.66 : x
  2. Step 2: Convert to fraction form
    11,320.88/15,622.20 = 6,540.66/x
  3. Step 3: Cross multiply
    11,320.88x = 15,622.20 × 6,540.66
  4. Step 4: Simplify right side
    11,320.88x = 102,179,498.65
  5. Step 5: Solve for x
    x = 102,179,498.65/11,320.88
  6. Step 6: Final answer
    x = 9,025.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.