Home / 19,839.72-27,378.66-11,460.84

Finding the Fourth Proportional to 19,839.72, 27,378.66 and 11,460.84

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Solution

The fourth proportional to 19,839.72, 27,378.66 and 11,460.84 is: 15,815.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,839.72 : 27,378.66 = 11,460.84 : x
  2. Step 2: Convert to fraction form
    19,839.72/27,378.66 = 11,460.84/x
  3. Step 3: Cross multiply
    19,839.72x = 27,378.66 × 11,460.84
  4. Step 4: Simplify right side
    19,839.72x = 313,782,441.67
  5. Step 5: Solve for x
    x = 313,782,441.67/19,839.72
  6. Step 6: Final answer
    x = 15,815.87

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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.