Home / 10,279.58-15,403.92-7,936.05

Finding the Fourth Proportional to 10,279.58, 15,403.92 and 7,936.05

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Solution

The fourth proportional to 10,279.58, 15,403.92 and 7,936.05 is: 11,892.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,279.58 : 15,403.92 = 7,936.05 : x
  2. Step 2: Convert to fraction form
    10,279.58/15,403.92 = 7,936.05/x
  3. Step 3: Cross multiply
    10,279.58x = 15,403.92 × 7,936.05
  4. Step 4: Simplify right side
    10,279.58x = 122,246,279.32
  5. Step 5: Solve for x
    x = 122,246,279.32/10,279.58
  6. Step 6: Final answer
    x = 11,892.15

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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.