Home / 10,317.20-15,478.12-3,743.37

Finding the Fourth Proportional to 10,317.20, 15,478.12 and 3,743.37

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Solution

The fourth proportional to 10,317.20, 15,478.12 and 3,743.37 is: 5,615.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,317.20 : 15,478.12 = 3,743.37 : x
  2. Step 2: Convert to fraction form
    10,317.20/15,478.12 = 3,743.37/x
  3. Step 3: Cross multiply
    10,317.20x = 15,478.12 × 3,743.37
  4. Step 4: Simplify right side
    10,317.20x = 57,940,334.74
  5. Step 5: Solve for x
    x = 57,940,334.74/10,317.20
  6. Step 6: Final answer
    x = 5,615.90

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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.