Home / 15,910.55-21,955.96-8,837.43

Finding the Fourth Proportional to 15,910.55, 21,955.96 and 8,837.43

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Solution

The fourth proportional to 15,910.55, 21,955.96 and 8,837.43 is: 12,195.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,910.55 : 21,955.96 = 8,837.43 : x
  2. Step 2: Convert to fraction form
    15,910.55/21,955.96 = 8,837.43/x
  3. Step 3: Cross multiply
    15,910.55x = 21,955.96 × 8,837.43
  4. Step 4: Simplify right side
    15,910.55x = 194,034,105.62
  5. Step 5: Solve for x
    x = 194,034,105.62/15,910.55
  6. Step 6: Final answer
    x = 12,195.31

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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.