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Finding the Fourth Proportional to 6,550.40, 9,825.59 and 5,393.72

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Solution

The fourth proportional to 6,550.40, 9,825.59 and 5,393.72 is: 8,090.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,550.40 : 9,825.59 = 5,393.72 : x
  2. Step 2: Convert to fraction form
    6,550.40/9,825.59 = 5,393.72/x
  3. Step 3: Cross multiply
    6,550.40x = 9,825.59 × 5,393.72
  4. Step 4: Simplify right side
    6,550.40x = 52,996,481.29
  5. Step 5: Solve for x
    x = 52,996,481.29/6,550.40
  6. Step 6: Final answer
    x = 8,090.57

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Similar ratio
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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.