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Finding the Fourth Proportional to 18,448.40, 27,672.60 and 8,606.90

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Solution

The fourth proportional to 18,448.40, 27,672.60 and 8,606.90 is: 12,910.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,448.40 : 27,672.60 = 8,606.90 : x
  2. Step 2: Convert to fraction form
    18,448.40/27,672.60 = 8,606.90/x
  3. Step 3: Cross multiply
    18,448.40x = 27,672.60 × 8,606.90
  4. Step 4: Simplify right side
    18,448.40x = 238,175,300.94
  5. Step 5: Solve for x
    x = 238,175,300.94/18,448.40
  6. Step 6: Final answer
    x = 12,910.35

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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.