Home / 9,789.14-13,512.23-5,755.78

Finding the Fourth Proportional to 9,789.14, 13,512.23 and 5,755.78

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Solution

The fourth proportional to 9,789.14, 13,512.23 and 5,755.78 is: 7,944.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,789.14 : 13,512.23 = 5,755.78 : x
  2. Step 2: Convert to fraction form
    9,789.14/13,512.23 = 5,755.78/x
  3. Step 3: Cross multiply
    9,789.14x = 13,512.23 × 5,755.78
  4. Step 4: Simplify right side
    9,789.14x = 77,773,423.19
  5. Step 5: Solve for x
    x = 77,773,423.19/9,789.14
  6. Step 6: Final answer
    x = 7,944.87

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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.