Home / 8,589.13-12,886.76-5,298.39

Finding the Fourth Proportional to 8,589.13, 12,886.76 and 5,298.39

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Solution

The fourth proportional to 8,589.13, 12,886.76 and 5,298.39 is: 7,949.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,589.13 : 12,886.76 = 5,298.39 : x
  2. Step 2: Convert to fraction form
    8,589.13/12,886.76 = 5,298.39/x
  3. Step 3: Cross multiply
    8,589.13x = 12,886.76 × 5,298.39
  4. Step 4: Simplify right side
    8,589.13x = 68,279,093.56
  5. Step 5: Solve for x
    x = 68,279,093.56/8,589.13
  6. Step 6: Final answer
    x = 7,949.48

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Double scale
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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.