Home / 10,279.39-15,433.68-9,809.59

Finding the Fourth Proportional to 10,279.39, 15,433.68 and 9,809.59

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Solution

The fourth proportional to 10,279.39, 15,433.68 and 9,809.59 is: 14,728.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,279.39 : 15,433.68 = 9,809.59 : x
  2. Step 2: Convert to fraction form
    10,279.39/15,433.68 = 9,809.59/x
  3. Step 3: Cross multiply
    10,279.39x = 15,433.68 × 9,809.59
  4. Step 4: Simplify right side
    10,279.39x = 151,398,072.99
  5. Step 5: Solve for x
    x = 151,398,072.99/10,279.39
  6. Step 6: Final answer
    x = 14,728.31

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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.