Home / 10,121.56-13,974.25-6,538.13

Finding the Fourth Proportional to 10,121.56, 13,974.25 and 6,538.13

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Solution

The fourth proportional to 10,121.56, 13,974.25 and 6,538.13 is: 9,026.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,121.56 : 13,974.25 = 6,538.13 : x
  2. Step 2: Convert to fraction form
    10,121.56/13,974.25 = 6,538.13/x
  3. Step 3: Cross multiply
    10,121.56x = 13,974.25 × 6,538.13
  4. Step 4: Simplify right side
    10,121.56x = 91,365,463.15
  5. Step 5: Solve for x
    x = 91,365,463.15/10,121.56
  6. Step 6: Final answer
    x = 9,026.82

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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.