Home / 10,205.64-15,301.60-3,628.20

Finding the Fourth Proportional to 10,205.64, 15,301.60 and 3,628.20

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Solution

The fourth proportional to 10,205.64, 15,301.60 and 3,628.20 is: 5,439.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,205.64 : 15,301.60 = 3,628.20 : x
  2. Step 2: Convert to fraction form
    10,205.64/15,301.60 = 3,628.20/x
  3. Step 3: Cross multiply
    10,205.64x = 15,301.60 × 3,628.20
  4. Step 4: Simplify right side
    10,205.64x = 55,517,265.12
  5. Step 5: Solve for x
    x = 55,517,265.12/10,205.64
  6. Step 6: Final answer
    x = 5,439.86

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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.