Home / 9,961.80-13,747.56-5,486.04

Finding the Fourth Proportional to 9,961.80, 13,747.56 and 5,486.04

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Solution

The fourth proportional to 9,961.80, 13,747.56 and 5,486.04 is: 7,570.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,961.80 : 13,747.56 = 5,486.04 : x
  2. Step 2: Convert to fraction form
    9,961.80/13,747.56 = 5,486.04/x
  3. Step 3: Cross multiply
    9,961.80x = 13,747.56 × 5,486.04
  4. Step 4: Simplify right side
    9,961.80x = 75,419,664.06
  5. Step 5: Solve for x
    x = 75,419,664.06/9,961.80
  6. Step 6: Final answer
    x = 7,570.89

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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.