Home / 11,147.73-15,387.87-7,608.43

Finding the Fourth Proportional to 11,147.73, 15,387.87 and 7,608.43

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Solution

The fourth proportional to 11,147.73, 15,387.87 and 7,608.43 is: 10,502.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,147.73 : 15,387.87 = 7,608.43 : x
  2. Step 2: Convert to fraction form
    11,147.73/15,387.87 = 7,608.43/x
  3. Step 3: Cross multiply
    11,147.73x = 15,387.87 × 7,608.43
  4. Step 4: Simplify right side
    11,147.73x = 117,077,531.74
  5. Step 5: Solve for x
    x = 117,077,531.74/11,147.73
  6. Step 6: Final answer
    x = 10,502.37

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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.