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Finding the Fourth Proportional to 9,172.65, 13,759.02 and 3,326.88

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Solution

The fourth proportional to 9,172.65, 13,759.02 and 3,326.88 is: 4,990.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,172.65 : 13,759.02 = 3,326.88 : x
  2. Step 2: Convert to fraction form
    9,172.65/13,759.02 = 3,326.88/x
  3. Step 3: Cross multiply
    9,172.65x = 13,759.02 × 3,326.88
  4. Step 4: Simplify right side
    9,172.65x = 45,774,608.46
  5. Step 5: Solve for x
    x = 45,774,608.46/9,172.65
  6. Step 6: Final answer
    x = 4,990.34

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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.