Home / 13,243.28-19,864.92-5,452.72

Finding the Fourth Proportional to 13,243.28, 19,864.92 and 5,452.72

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Solution

The fourth proportional to 13,243.28, 19,864.92 and 5,452.72 is: 8,179.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,243.28 : 19,864.92 = 5,452.72 : x
  2. Step 2: Convert to fraction form
    13,243.28/19,864.92 = 5,452.72/x
  3. Step 3: Cross multiply
    13,243.28x = 19,864.92 × 5,452.72
  4. Step 4: Simplify right side
    13,243.28x = 108,317,846.58
  5. Step 5: Solve for x
    x = 108,317,846.58/13,243.28
  6. Step 6: Final answer
    x = 8,179.08

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1.5x scale

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.