Home / 10,186.41-15,280.11-3,171.21

Finding the Fourth Proportional to 10,186.41, 15,280.11 and 3,171.21

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Solution

The fourth proportional to 10,186.41, 15,280.11 and 3,171.21 is: 4,756.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,186.41 : 15,280.11 = 3,171.21 : x
  2. Step 2: Convert to fraction form
    10,186.41/15,280.11 = 3,171.21/x
  3. Step 3: Cross multiply
    10,186.41x = 15,280.11 × 3,171.21
  4. Step 4: Simplify right side
    10,186.41x = 48,456,437.63
  5. Step 5: Solve for x
    x = 48,456,437.63/10,186.41
  6. Step 6: Final answer
    x = 4,756.97

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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.