Home / 15,178.38-20,944.89-8,463.48

Finding the Fourth Proportional to 15,178.38, 20,944.89 and 8,463.48

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Solution

The fourth proportional to 15,178.38, 20,944.89 and 8,463.48 is: 11,678.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,178.38 : 20,944.89 = 8,463.48 : x
  2. Step 2: Convert to fraction form
    15,178.38/20,944.89 = 8,463.48/x
  3. Step 3: Cross multiply
    15,178.38x = 20,944.89 × 8,463.48
  4. Step 4: Simplify right side
    15,178.38x = 177,266,657.62
  5. Step 5: Solve for x
    x = 177,266,657.62/15,178.38
  6. Step 6: Final answer
    x = 11,678.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.