Home / 10,458.55-15,687.61-4,218.43

Finding the Fourth Proportional to 10,458.55, 15,687.61 and 4,218.43

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Solution

The fourth proportional to 10,458.55, 15,687.61 and 4,218.43 is: 6,327.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,458.55 : 15,687.61 = 4,218.43 : x
  2. Step 2: Convert to fraction form
    10,458.55/15,687.61 = 4,218.43/x
  3. Step 3: Cross multiply
    10,458.55x = 15,687.61 × 4,218.43
  4. Step 4: Simplify right side
    10,458.55x = 66,177,084.65
  5. Step 5: Solve for x
    x = 66,177,084.65/10,458.55
  6. Step 6: Final answer
    x = 6,327.56

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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.