Home / 15,018.15-20,732.97-11,653.41

Finding the Fourth Proportional to 15,018.15, 20,732.97 and 11,653.41

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Solution

The fourth proportional to 15,018.15, 20,732.97 and 11,653.41 is: 16,087.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,018.15 : 20,732.97 = 11,653.41 : x
  2. Step 2: Convert to fraction form
    15,018.15/20,732.97 = 11,653.41/x
  3. Step 3: Cross multiply
    15,018.15x = 20,732.97 × 11,653.41
  4. Step 4: Simplify right side
    15,018.15x = 241,609,799.93
  5. Step 5: Solve for x
    x = 241,609,799.93/15,018.15
  6. Step 6: Final answer
    x = 16,087.85

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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.