Home / 8,891.46-12,272.31-5,536.85

Finding the Fourth Proportional to 8,891.46, 12,272.31 and 5,536.85

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Solution

The fourth proportional to 8,891.46, 12,272.31 and 5,536.85 is: 7,642.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,891.46 : 12,272.31 = 5,536.85 : x
  2. Step 2: Convert to fraction form
    8,891.46/12,272.31 = 5,536.85/x
  3. Step 3: Cross multiply
    8,891.46x = 12,272.31 × 5,536.85
  4. Step 4: Simplify right side
    8,891.46x = 67,949,878.26
  5. Step 5: Solve for x
    x = 67,949,878.26/8,891.46
  6. Step 6: Final answer
    x = 7,642.15

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Double scale
Find fourth proportional to 8,892.46, 12,273.69 and 5,537.85
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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.