Home / 12,178.80-18,265.32-5,249.52

Finding the Fourth Proportional to 12,178.80, 18,265.32 and 5,249.52

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Solution

The fourth proportional to 12,178.80, 18,265.32 and 5,249.52 is: 7,873.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,178.80 : 18,265.32 = 5,249.52 : x
  2. Step 2: Convert to fraction form
    12,178.80/18,265.32 = 5,249.52/x
  3. Step 3: Cross multiply
    12,178.80x = 18,265.32 × 5,249.52
  4. Step 4: Simplify right side
    12,178.80x = 95,884,162.65
  5. Step 5: Solve for x
    x = 95,884,162.65/12,178.80
  6. Step 6: Final answer
    x = 7,873.04

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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.