Home / 9,993.45-13,790.79-5,517.63

Finding the Fourth Proportional to 9,993.45, 13,790.79 and 5,517.63

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Solution

The fourth proportional to 9,993.45, 13,790.79 and 5,517.63 is: 7,614.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,993.45 : 13,790.79 = 5,517.63 : x
  2. Step 2: Convert to fraction form
    9,993.45/13,790.79 = 5,517.63/x
  3. Step 3: Cross multiply
    9,993.45x = 13,790.79 × 5,517.63
  4. Step 4: Simplify right side
    9,993.45x = 76,092,476.63
  5. Step 5: Solve for x
    x = 76,092,476.63/9,993.45
  6. Step 6: Final answer
    x = 7,614.23

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Double scale
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Similar ratio
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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.