Home / 12,944.89-17,864.58-7,279.75

Finding the Fourth Proportional to 12,944.89, 17,864.58 and 7,279.75

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Solution

The fourth proportional to 12,944.89, 17,864.58 and 7,279.75 is: 10,046.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,944.89 : 17,864.58 = 7,279.75 : x
  2. Step 2: Convert to fraction form
    12,944.89/17,864.58 = 7,279.75/x
  3. Step 3: Cross multiply
    12,944.89x = 17,864.58 × 7,279.75
  4. Step 4: Simplify right side
    12,944.89x = 130,049,676.26
  5. Step 5: Solve for x
    x = 130,049,676.26/12,944.89
  6. Step 6: Final answer
    x = 10,046.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.