Home / 10,917.22-15,067.56-6,442.06

Finding the Fourth Proportional to 10,917.22, 15,067.56 and 6,442.06

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Solution

The fourth proportional to 10,917.22, 15,067.56 and 6,442.06 is: 8,891.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,917.22 : 15,067.56 = 6,442.06 : x
  2. Step 2: Convert to fraction form
    10,917.22/15,067.56 = 6,442.06/x
  3. Step 3: Cross multiply
    10,917.22x = 15,067.56 × 6,442.06
  4. Step 4: Simplify right side
    10,917.22x = 97,066,125.57
  5. Step 5: Solve for x
    x = 97,066,125.57/10,917.22
  6. Step 6: Final answer
    x = 8,891.10

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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.