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Finding the Fourth Proportional to 11,264.40, 16,882.20 and 9,968.40

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Solution

The fourth proportional to 11,264.40, 16,882.20 and 9,968.40 is: 14,939.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,264.40 : 16,882.20 = 9,968.40 : x
  2. Step 2: Convert to fraction form
    11,264.40/16,882.20 = 9,968.40/x
  3. Step 3: Cross multiply
    11,264.40x = 16,882.20 × 9,968.40
  4. Step 4: Simplify right side
    11,264.40x = 168,288,522.48
  5. Step 5: Solve for x
    x = 168,288,522.48/11,264.40
  6. Step 6: Final answer
    x = 14,939.86

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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.