Home / 10,146.28-15,216.30-3,905.80

Finding the Fourth Proportional to 10,146.28, 15,216.30 and 3,905.80

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Solution

The fourth proportional to 10,146.28, 15,216.30 and 3,905.80 is: 5,857.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,146.28 : 15,216.30 = 3,905.80 : x
  2. Step 2: Convert to fraction form
    10,146.28/15,216.30 = 3,905.80/x
  3. Step 3: Cross multiply
    10,146.28x = 15,216.30 × 3,905.80
  4. Step 4: Simplify right side
    10,146.28x = 59,431,824.54
  5. Step 5: Solve for x
    x = 59,431,824.54/10,146.28
  6. Step 6: Final answer
    x = 5,857.50

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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.