Home / 10,138.67-15,208.76-2,742.96

Finding the Fourth Proportional to 10,138.67, 15,208.76 and 2,742.96

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Solution

The fourth proportional to 10,138.67, 15,208.76 and 2,742.96 is: 4,114.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,138.67 : 15,208.76 = 2,742.96 : x
  2. Step 2: Convert to fraction form
    10,138.67/15,208.76 = 2,742.96/x
  3. Step 3: Cross multiply
    10,138.67x = 15,208.76 × 2,742.96
  4. Step 4: Simplify right side
    10,138.67x = 41,717,084.22
  5. Step 5: Solve for x
    x = 41,717,084.22/10,138.67
  6. Step 6: Final answer
    x = 4,114.65

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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.