Home / 10,538.95-15,809.33-2,747.75

Finding the Fourth Proportional to 10,538.95, 15,809.33 and 2,747.75

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Solution

The fourth proportional to 10,538.95, 15,809.33 and 2,747.75 is: 4,121.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,538.95 : 15,809.33 = 2,747.75 : x
  2. Step 2: Convert to fraction form
    10,538.95/15,809.33 = 2,747.75/x
  3. Step 3: Cross multiply
    10,538.95x = 15,809.33 × 2,747.75
  4. Step 4: Simplify right side
    10,538.95x = 43,440,086.51
  5. Step 5: Solve for x
    x = 43,440,086.51/10,538.95
  6. Step 6: Final answer
    x = 4,121.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.