Home / 10,138.95-15,209.37-2,743.47

Finding the Fourth Proportional to 10,138.95, 15,209.37 and 2,743.47

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Solution

The fourth proportional to 10,138.95, 15,209.37 and 2,743.47 is: 4,115.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,138.95 : 15,209.37 = 2,743.47 : x
  2. Step 2: Convert to fraction form
    10,138.95/15,209.37 = 2,743.47/x
  3. Step 3: Cross multiply
    10,138.95x = 15,209.37 × 2,743.47
  4. Step 4: Simplify right side
    10,138.95x = 41,726,450.31
  5. Step 5: Solve for x
    x = 41,726,450.31/10,138.95
  6. Step 6: Final answer
    x = 4,115.46

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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.