Home / 10,279.22-15,418.85-2,488.05

Finding the Fourth Proportional to 10,279.22, 15,418.85 and 2,488.05

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Solution

The fourth proportional to 10,279.22, 15,418.85 and 2,488.05 is: 3,732.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,279.22 : 15,418.85 = 2,488.05 : x
  2. Step 2: Convert to fraction form
    10,279.22/15,418.85 = 2,488.05/x
  3. Step 3: Cross multiply
    10,279.22x = 15,418.85 × 2,488.05
  4. Step 4: Simplify right side
    10,279.22x = 38,362,857.30
  5. Step 5: Solve for x
    x = 38,362,857.30/10,279.22
  6. Step 6: Final answer
    x = 3,732.08

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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.