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Finding the Fourth Proportional to 17,758.08, 26,641.04 and 5,279.12

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Solution

The fourth proportional to 17,758.08, 26,641.04 and 5,279.12 is: 7,919.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,758.08 : 26,641.04 = 5,279.12 : x
  2. Step 2: Convert to fraction form
    17,758.08/26,641.04 = 5,279.12/x
  3. Step 3: Cross multiply
    17,758.08x = 26,641.04 × 5,279.12
  4. Step 4: Simplify right side
    17,758.08x = 140,641,247.08
  5. Step 5: Solve for x
    x = 140,641,247.08/17,758.08
  6. Step 6: Final answer
    x = 7,919.85

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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.