Home / 18,816.38-28,226.45-4,965.38

Finding the Fourth Proportional to 18,816.38, 28,226.45 and 4,965.38

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Solution

The fourth proportional to 18,816.38, 28,226.45 and 4,965.38 is: 7,448.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,816.38 : 28,226.45 = 4,965.38 : x
  2. Step 2: Convert to fraction form
    18,816.38/28,226.45 = 4,965.38/x
  3. Step 3: Cross multiply
    18,816.38x = 28,226.45 × 4,965.38
  4. Step 4: Simplify right side
    18,816.38x = 140,154,921.58
  5. Step 5: Solve for x
    x = 140,154,921.58/18,816.38
  6. Step 6: Final answer
    x = 7,448.56

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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.