Home / 8,622.72-11,891.52-6,261.12

Finding the Fourth Proportional to 8,622.72, 11,891.52 and 6,261.12

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Solution

The fourth proportional to 8,622.72, 11,891.52 and 6,261.12 is: 8,634.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,622.72 : 11,891.52 = 6,261.12 : x
  2. Step 2: Convert to fraction form
    8,622.72/11,891.52 = 6,261.12/x
  3. Step 3: Cross multiply
    8,622.72x = 11,891.52 × 6,261.12
  4. Step 4: Simplify right side
    8,622.72x = 74,454,233.70
  5. Step 5: Solve for x
    x = 74,454,233.70/8,622.72
  6. Step 6: Final answer
    x = 8,634.66

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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.