Home / 18,879.10-26,052.62-10,381.25

Finding the Fourth Proportional to 18,879.10, 26,052.62 and 10,381.25

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Solution

The fourth proportional to 18,879.10, 26,052.62 and 10,381.25 is: 14,325.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,879.10 : 26,052.62 = 10,381.25 : x
  2. Step 2: Convert to fraction form
    18,879.10/26,052.62 = 10,381.25/x
  3. Step 3: Cross multiply
    18,879.10x = 26,052.62 × 10,381.25
  4. Step 4: Simplify right side
    18,879.10x = 270,458,774.60
  5. Step 5: Solve for x
    x = 270,458,774.60/18,879.10
  6. Step 6: Final answer
    x = 14,325.83

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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.