Home / 18,939.60-26,135.97-10,325.60

Finding the Fourth Proportional to 18,939.60, 26,135.97 and 10,325.60

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Solution

The fourth proportional to 18,939.60, 26,135.97 and 10,325.60 is: 14,248.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,939.60 : 26,135.97 = 10,325.60 : x
  2. Step 2: Convert to fraction form
    18,939.60/26,135.97 = 10,325.60/x
  3. Step 3: Cross multiply
    18,939.60x = 26,135.97 × 10,325.60
  4. Step 4: Simplify right side
    18,939.60x = 269,869,500.44
  5. Step 5: Solve for x
    x = 269,869,500.44/18,939.60
  6. Step 6: Final answer
    x = 14,248.95

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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.