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Finding the Fourth Proportional to 8,891.78, 13,339.56 and 3,046.82

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Solution

The fourth proportional to 8,891.78, 13,339.56 and 3,046.82 is: 4,570.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,891.78 : 13,339.56 = 3,046.82 : x
  2. Step 2: Convert to fraction form
    8,891.78/13,339.56 = 3,046.82/x
  3. Step 3: Cross multiply
    8,891.78x = 13,339.56 × 3,046.82
  4. Step 4: Simplify right side
    8,891.78x = 40,643,238.20
  5. Step 5: Solve for x
    x = 40,643,238.20/8,891.78
  6. Step 6: Final answer
    x = 4,570.88

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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.