Home / 10,425.72-15,641.50-4,190.11

Finding the Fourth Proportional to 10,425.72, 15,641.50 and 4,190.11

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Solution

The fourth proportional to 10,425.72, 15,641.50 and 4,190.11 is: 6,286.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,425.72 : 15,641.50 = 4,190.11 : x
  2. Step 2: Convert to fraction form
    10,425.72/15,641.50 = 4,190.11/x
  3. Step 3: Cross multiply
    10,425.72x = 15,641.50 × 4,190.11
  4. Step 4: Simplify right side
    10,425.72x = 65,539,605.57
  5. Step 5: Solve for x
    x = 65,539,605.57/10,425.72
  6. Step 6: Final answer
    x = 6,286.34

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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.