Home / 10,242.87-15,370.27-4,319.39

Finding the Fourth Proportional to 10,242.87, 15,370.27 and 4,319.39

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Solution

The fourth proportional to 10,242.87, 15,370.27 and 4,319.39 is: 6,481.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,242.87 : 15,370.27 = 4,319.39 : x
  2. Step 2: Convert to fraction form
    10,242.87/15,370.27 = 4,319.39/x
  3. Step 3: Cross multiply
    10,242.87x = 15,370.27 × 4,319.39
  4. Step 4: Simplify right side
    10,242.87x = 66,390,190.54
  5. Step 5: Solve for x
    x = 66,390,190.54/10,242.87
  6. Step 6: Final answer
    x = 6,481.60

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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.