Home / 16,840.20-23,239.59-9,286.80

Finding the Fourth Proportional to 16,840.20, 23,239.59 and 9,286.80

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Solution

The fourth proportional to 16,840.20, 23,239.59 and 9,286.80 is: 12,815.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,840.20 : 23,239.59 = 9,286.80 : x
  2. Step 2: Convert to fraction form
    16,840.20/23,239.59 = 9,286.80/x
  3. Step 3: Cross multiply
    16,840.20x = 23,239.59 × 9,286.80
  4. Step 4: Simplify right side
    16,840.20x = 215,821,424.41
  5. Step 5: Solve for x
    x = 215,821,424.41/16,840.20
  6. Step 6: Final answer
    x = 12,815.85

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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.