Home / 18,917.33-26,105.53-11,847.65

Finding the Fourth Proportional to 18,917.33, 26,105.53 and 11,847.65

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Solution

The fourth proportional to 18,917.33, 26,105.53 and 11,847.65 is: 16,349.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,917.33 : 26,105.53 = 11,847.65 : x
  2. Step 2: Convert to fraction form
    18,917.33/26,105.53 = 11,847.65/x
  3. Step 3: Cross multiply
    18,917.33x = 26,105.53 × 11,847.65
  4. Step 4: Simplify right side
    18,917.33x = 309,289,117.24
  5. Step 5: Solve for x
    x = 309,289,117.24/18,917.33
  6. Step 6: Final answer
    x = 16,349.51

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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.