Home / 10,113.12-15,171.33-3,186

Finding the Fourth Proportional to 10,113.12, 15,171.33 and 3,186

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Solution

The fourth proportional to 10,113.12, 15,171.33 and 3,186 is: 4,779.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,113.12 : 15,171.33 = 3,186 : x
  2. Step 2: Convert to fraction form
    10,113.12/15,171.33 = 3,186/x
  3. Step 3: Cross multiply
    10,113.12x = 15,171.33 × 3,186
  4. Step 4: Simplify right side
    10,113.12x = 48,335,857.38
  5. Step 5: Solve for x
    x = 48,335,857.38/10,113.12
  6. Step 6: Final answer
    x = 4,779.52

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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.