Home / 10,313.12-15,469.04-2,918.56

Finding the Fourth Proportional to 10,313.12, 15,469.04 and 2,918.56

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Solution

The fourth proportional to 10,313.12, 15,469.04 and 2,918.56 is: 4,377.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,313.12 : 15,469.04 = 2,918.56 : x
  2. Step 2: Convert to fraction form
    10,313.12/15,469.04 = 2,918.56/x
  3. Step 3: Cross multiply
    10,313.12x = 15,469.04 × 2,918.56
  4. Step 4: Simplify right side
    10,313.12x = 45,147,321.38
  5. Step 5: Solve for x
    x = 45,147,321.38/10,313.12
  6. Step 6: Final answer
    x = 4,377.66

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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.