Home / 10,107.28-15,161.40-3,952.72

Finding the Fourth Proportional to 10,107.28, 15,161.40 and 3,952.72

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Solution

The fourth proportional to 10,107.28, 15,161.40 and 3,952.72 is: 5,929.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,107.28 : 15,161.40 = 3,952.72 : x
  2. Step 2: Convert to fraction form
    10,107.28/15,161.40 = 3,952.72/x
  3. Step 3: Cross multiply
    10,107.28x = 15,161.40 × 3,952.72
  4. Step 4: Simplify right side
    10,107.28x = 59,928,769.01
  5. Step 5: Solve for x
    x = 59,928,769.01/10,107.28
  6. Step 6: Final answer
    x = 5,929.27

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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.