Home / 18,979.14-26,191.08-10,481.79

Finding the Fourth Proportional to 18,979.14, 26,191.08 and 10,481.79

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Solution

The fourth proportional to 18,979.14, 26,191.08 and 10,481.79 is: 14,464.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,979.14 : 26,191.08 = 10,481.79 : x
  2. Step 2: Convert to fraction form
    18,979.14/26,191.08 = 10,481.79/x
  3. Step 3: Cross multiply
    18,979.14x = 26,191.08 × 10,481.79
  4. Step 4: Simplify right side
    18,979.14x = 274,529,400.43
  5. Step 5: Solve for x
    x = 274,529,400.43/18,979.14
  6. Step 6: Final answer
    x = 14,464.80

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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.