Home / 9,175.52-12,656.58-7,999.40

Finding the Fourth Proportional to 9,175.52, 12,656.58 and 7,999.40

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Solution

The fourth proportional to 9,175.52, 12,656.58 and 7,999.40 is: 11,034.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,175.52 : 12,656.58 = 7,999.40 : x
  2. Step 2: Convert to fraction form
    9,175.52/12,656.58 = 7,999.40/x
  3. Step 3: Cross multiply
    9,175.52x = 12,656.58 × 7,999.40
  4. Step 4: Simplify right side
    9,175.52x = 101,245,046.05
  5. Step 5: Solve for x
    x = 101,245,046.05/9,175.52
  6. Step 6: Final answer
    x = 11,034.26

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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.