Home / 16,839.86-23,239.19-9,286.21

Finding the Fourth Proportional to 16,839.86, 23,239.19 and 9,286.21

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Solution

The fourth proportional to 16,839.86, 23,239.19 and 9,286.21 is: 12,815.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,839.86 : 23,239.19 = 9,286.21 : x
  2. Step 2: Convert to fraction form
    16,839.86/23,239.19 = 9,286.21/x
  3. Step 3: Cross multiply
    16,839.86x = 23,239.19 × 9,286.21
  4. Step 4: Simplify right side
    16,839.86x = 215,803,998.57
  5. Step 5: Solve for x
    x = 215,803,998.57/16,839.86
  6. Step 6: Final answer
    x = 12,815.07

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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.