Home / 13,112.20-19,668.04-3,251.52

Finding the Fourth Proportional to 13,112.20, 19,668.04 and 3,251.52

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Solution

The fourth proportional to 13,112.20, 19,668.04 and 3,251.52 is: 4,877.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,112.20 : 19,668.04 = 3,251.52 : x
  2. Step 2: Convert to fraction form
    13,112.20/19,668.04 = 3,251.52/x
  3. Step 3: Cross multiply
    13,112.20x = 19,668.04 × 3,251.52
  4. Step 4: Simplify right side
    13,112.20x = 63,951,025.42
  5. Step 5: Solve for x
    x = 63,951,025.42/13,112.20
  6. Step 6: Final answer
    x = 4,877.22

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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.