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Finding the Fourth Proportional to 9,641.44, 13,304.16 and 5,449.60

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Solution

The fourth proportional to 9,641.44, 13,304.16 and 5,449.60 is: 7,519.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,641.44 : 13,304.16 = 5,449.60 : x
  2. Step 2: Convert to fraction form
    9,641.44/13,304.16 = 5,449.60/x
  3. Step 3: Cross multiply
    9,641.44x = 13,304.16 × 5,449.60
  4. Step 4: Simplify right side
    9,641.44x = 72,502,350.34
  5. Step 5: Solve for x
    x = 72,502,350.34/9,641.44
  6. Step 6: Final answer
    x = 7,519.87

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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.