Home / 11,981.03-16,539.66-9,286.16

Finding the Fourth Proportional to 11,981.03, 16,539.66 and 9,286.16

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Solution

The fourth proportional to 11,981.03, 16,539.66 and 9,286.16 is: 12,819.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,981.03 : 16,539.66 = 9,286.16 : x
  2. Step 2: Convert to fraction form
    11,981.03/16,539.66 = 9,286.16/x
  3. Step 3: Cross multiply
    11,981.03x = 16,539.66 × 9,286.16
  4. Step 4: Simplify right side
    11,981.03x = 153,589,846.41
  5. Step 5: Solve for x
    x = 153,589,846.41/11,981.03
  6. Step 6: Final answer
    x = 12,819.42

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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.