Home / 18,903-26,086.16-10,945.65

Finding the Fourth Proportional to 18,903, 26,086.16 and 10,945.65

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Solution

The fourth proportional to 18,903, 26,086.16 and 10,945.65 is: 15,105.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,903 : 26,086.16 = 10,945.65 : x
  2. Step 2: Convert to fraction form
    18,903/26,086.16 = 10,945.65/x
  3. Step 3: Cross multiply
    18,903x = 26,086.16 × 10,945.65
  4. Step 4: Simplify right side
    18,903x = 285,529,922.48
  5. Step 5: Solve for x
    x = 285,529,922.48/18,903
  6. Step 6: Final answer
    x = 15,105.01

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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.