Home / 13,992.62-21,085.38-11,581.65

Finding the Fourth Proportional to 13,992.62, 21,085.38 and 11,581.65

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Solution

The fourth proportional to 13,992.62, 21,085.38 and 11,581.65 is: 17,452.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,992.62 : 21,085.38 = 11,581.65 : x
  2. Step 2: Convert to fraction form
    13,992.62/21,085.38 = 11,581.65/x
  3. Step 3: Cross multiply
    13,992.62x = 21,085.38 × 11,581.65
  4. Step 4: Simplify right side
    13,992.62x = 244,203,491.28
  5. Step 5: Solve for x
    x = 244,203,491.28/13,992.62
  6. Step 6: Final answer
    x = 17,452.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.