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Finding the Fourth Proportional to 9,761, 14,641.74 and 3,521.54

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Solution

The fourth proportional to 9,761, 14,641.74 and 3,521.54 is: 5,282.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,761 : 14,641.74 = 3,521.54 : x
  2. Step 2: Convert to fraction form
    9,761/14,641.74 = 3,521.54/x
  3. Step 3: Cross multiply
    9,761x = 14,641.74 × 3,521.54
  4. Step 4: Simplify right side
    9,761x = 51,561,473.08
  5. Step 5: Solve for x
    x = 51,561,473.08/9,761
  6. Step 6: Final answer
    x = 5,282.40

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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.