Home / 8,168.40-12,251.52-3,239.28

Finding the Fourth Proportional to 8,168.40, 12,251.52 and 3,239.28

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Solution

The fourth proportional to 8,168.40, 12,251.52 and 3,239.28 is: 4,858.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,168.40 : 12,251.52 = 3,239.28 : x
  2. Step 2: Convert to fraction form
    8,168.40/12,251.52 = 3,239.28/x
  3. Step 3: Cross multiply
    8,168.40x = 12,251.52 × 3,239.28
  4. Step 4: Simplify right side
    8,168.40x = 39,686,103.71
  5. Step 5: Solve for x
    x = 39,686,103.71/8,168.40
  6. Step 6: Final answer
    x = 4,858.49

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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.