Home / 8,799.78-12,147.60-5,617.26

Finding the Fourth Proportional to 8,799.78, 12,147.60 and 5,617.26

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Solution

The fourth proportional to 8,799.78, 12,147.60 and 5,617.26 is: 7,754.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,799.78 : 12,147.60 = 5,617.26 : x
  2. Step 2: Convert to fraction form
    8,799.78/12,147.60 = 5,617.26/x
  3. Step 3: Cross multiply
    8,799.78x = 12,147.60 × 5,617.26
  4. Step 4: Simplify right side
    8,799.78x = 68,236,227.58
  5. Step 5: Solve for x
    x = 68,236,227.58/8,799.78
  6. Step 6: Final answer
    x = 7,754.31

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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.