Home / 8,875.20-13,286.84-5,388.96

Finding the Fourth Proportional to 8,875.20, 13,286.84 and 5,388.96

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Solution

The fourth proportional to 8,875.20, 13,286.84 and 5,388.96 is: 8,067.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,875.20 : 13,286.84 = 5,388.96 : x
  2. Step 2: Convert to fraction form
    8,875.20/13,286.84 = 5,388.96/x
  3. Step 3: Cross multiply
    8,875.20x = 13,286.84 × 5,388.96
  4. Step 4: Simplify right side
    8,875.20x = 71,602,249.29
  5. Step 5: Solve for x
    x = 71,602,249.29/8,875.20
  6. Step 6: Final answer
    x = 8,067.68

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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.