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Finding the Fourth Proportional to 22,660.79, 33,992.34 and 8,426.11

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Solution

The fourth proportional to 22,660.79, 33,992.34 and 8,426.11 is: 12,639.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,660.79 : 33,992.34 = 8,426.11 : x
  2. Step 2: Convert to fraction form
    22,660.79/33,992.34 = 8,426.11/x
  3. Step 3: Cross multiply
    22,660.79x = 33,992.34 × 8,426.11
  4. Step 4: Simplify right side
    22,660.79x = 286,423,238.49
  5. Step 5: Solve for x
    x = 286,423,238.49/22,660.79
  6. Step 6: Final answer
    x = 12,639.60

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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.