Home / 9,159.44-12,638.66-5,180.46

Finding the Fourth Proportional to 9,159.44, 12,638.66 and 5,180.46

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Solution

The fourth proportional to 9,159.44, 12,638.66 and 5,180.46 is: 7,148.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,159.44 : 12,638.66 = 5,180.46 : x
  2. Step 2: Convert to fraction form
    9,159.44/12,638.66 = 5,180.46/x
  3. Step 3: Cross multiply
    9,159.44x = 12,638.66 × 5,180.46
  4. Step 4: Simplify right side
    9,159.44x = 65,474,046.68
  5. Step 5: Solve for x
    x = 65,474,046.68/9,159.44
  6. Step 6: Final answer
    x = 7,148.26

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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.