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Finding the Fourth Proportional to 11,321.73, 16,966.78 and 9,647.11

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Solution

The fourth proportional to 11,321.73, 16,966.78 and 9,647.11 is: 14,457.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,321.73 : 16,966.78 = 9,647.11 : x
  2. Step 2: Convert to fraction form
    11,321.73/16,966.78 = 9,647.11/x
  3. Step 3: Cross multiply
    11,321.73x = 16,966.78 × 9,647.11
  4. Step 4: Simplify right side
    11,321.73x = 163,680,326.47
  5. Step 5: Solve for x
    x = 163,680,326.47/11,321.73
  6. Step 6: Final answer
    x = 14,457.18

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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.