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Finding the Fourth Proportional to 11,122.84, 16,750.08 and 9,679.42

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Solution

The fourth proportional to 11,122.84, 16,750.08 and 9,679.42 is: 14,576.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,122.84 : 16,750.08 = 9,679.42 : x
  2. Step 2: Convert to fraction form
    11,122.84/16,750.08 = 9,679.42/x
  3. Step 3: Cross multiply
    11,122.84x = 16,750.08 × 9,679.42
  4. Step 4: Simplify right side
    11,122.84x = 162,131,059.35
  5. Step 5: Solve for x
    x = 162,131,059.35/11,122.84
  6. Step 6: Final answer
    x = 14,576.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.