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Finding the Fourth Proportional to 7,224.64, 9,963.84 and 5,550.08

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Solution

The fourth proportional to 7,224.64, 9,963.84 and 5,550.08 is: 7,654.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,224.64 : 9,963.84 = 5,550.08 : x
  2. Step 2: Convert to fraction form
    7,224.64/9,963.84 = 5,550.08/x
  3. Step 3: Cross multiply
    7,224.64x = 9,963.84 × 5,550.08
  4. Step 4: Simplify right side
    7,224.64x = 55,300,109.11
  5. Step 5: Solve for x
    x = 55,300,109.11/7,224.64
  6. Step 6: Final answer
    x = 7,654.38

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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.