Home / 9,769.19-13,480.61-5,789.66

Finding the Fourth Proportional to 9,769.19, 13,480.61 and 5,789.66

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Solution

The fourth proportional to 9,769.19, 13,480.61 and 5,789.66 is: 7,989.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,769.19 : 13,480.61 = 5,789.66 : x
  2. Step 2: Convert to fraction form
    9,769.19/13,480.61 = 5,789.66/x
  3. Step 3: Cross multiply
    9,769.19x = 13,480.61 × 5,789.66
  4. Step 4: Simplify right side
    9,769.19x = 78,048,052.14
  5. Step 5: Solve for x
    x = 78,048,052.14/9,769.19
  6. Step 6: Final answer
    x = 7,989.21

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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.