Home / 10,511.38-15,769.95-5,514.09

Finding the Fourth Proportional to 10,511.38, 15,769.95 and 5,514.09

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Solution

The fourth proportional to 10,511.38, 15,769.95 and 5,514.09 is: 8,272.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,511.38 : 15,769.95 = 5,514.09 : x
  2. Step 2: Convert to fraction form
    10,511.38/15,769.95 = 5,514.09/x
  3. Step 3: Cross multiply
    10,511.38x = 15,769.95 × 5,514.09
  4. Step 4: Simplify right side
    10,511.38x = 86,956,923.60
  5. Step 5: Solve for x
    x = 86,956,923.60/10,511.38
  6. Step 6: Final answer
    x = 8,272.65

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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.