Home / 8,279.68-11,421.12-5,595.52

Finding the Fourth Proportional to 8,279.68, 11,421.12 and 5,595.52

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Solution

The fourth proportional to 8,279.68, 11,421.12 and 5,595.52 is: 7,718.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,279.68 : 11,421.12 = 5,595.52 : x
  2. Step 2: Convert to fraction form
    8,279.68/11,421.12 = 5,595.52/x
  3. Step 3: Cross multiply
    8,279.68x = 11,421.12 × 5,595.52
  4. Step 4: Simplify right side
    8,279.68x = 63,907,105.38
  5. Step 5: Solve for x
    x = 63,907,105.38/8,279.68
  6. Step 6: Final answer
    x = 7,718.55

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Half scale
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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.