Home / 19,860.42-27,408.04-11,362.56

Finding the Fourth Proportional to 19,860.42, 27,408.04 and 11,362.56

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Solution

The fourth proportional to 19,860.42, 27,408.04 and 11,362.56 is: 15,680.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,860.42 : 27,408.04 = 11,362.56 : x
  2. Step 2: Convert to fraction form
    19,860.42/27,408.04 = 11,362.56/x
  3. Step 3: Cross multiply
    19,860.42x = 27,408.04 × 11,362.56
  4. Step 4: Simplify right side
    19,860.42x = 311,425,521.97
  5. Step 5: Solve for x
    x = 311,425,521.97/19,860.42
  6. Step 6: Final answer
    x = 15,680.71

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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.