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Finding the Fourth Proportional to 12,239.28, 16,894.08 and 8,882.64

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Solution

The fourth proportional to 12,239.28, 16,894.08 and 8,882.64 is: 12,260.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,239.28 : 16,894.08 = 8,882.64 : x
  2. Step 2: Convert to fraction form
    12,239.28/16,894.08 = 8,882.64/x
  3. Step 3: Cross multiply
    12,239.28x = 16,894.08 × 8,882.64
  4. Step 4: Simplify right side
    12,239.28x = 150,064,030.77
  5. Step 5: Solve for x
    x = 150,064,030.77/12,239.28
  6. Step 6: Final answer
    x = 12,260.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.