Home / 18,626.49-25,691.54-12,251.09

Finding the Fourth Proportional to 18,626.49, 25,691.54 and 12,251.09

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Solution

The fourth proportional to 18,626.49, 25,691.54 and 12,251.09 is: 16,897.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,626.49 : 25,691.54 = 12,251.09 : x
  2. Step 2: Convert to fraction form
    18,626.49/25,691.54 = 12,251.09/x
  3. Step 3: Cross multiply
    18,626.49x = 25,691.54 × 12,251.09
  4. Step 4: Simplify right side
    18,626.49x = 314,749,368.78
  5. Step 5: Solve for x
    x = 314,749,368.78/18,626.49
  6. Step 6: Final answer
    x = 16,897.94

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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.