Home / 10,343.76-15,512.40-3,768.72

Finding the Fourth Proportional to 10,343.76, 15,512.40 and 3,768.72

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Solution

The fourth proportional to 10,343.76, 15,512.40 and 3,768.72 is: 5,651.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,343.76 : 15,512.40 = 3,768.72 : x
  2. Step 2: Convert to fraction form
    10,343.76/15,512.40 = 3,768.72/x
  3. Step 3: Cross multiply
    10,343.76x = 15,512.40 × 3,768.72
  4. Step 4: Simplify right side
    10,343.76x = 58,461,892.13
  5. Step 5: Solve for x
    x = 58,461,892.13/10,343.76
  6. Step 6: Final answer
    x = 5,651.90

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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.