Home / 12,206.21-16,844.41-7,170.89

Finding the Fourth Proportional to 12,206.21, 16,844.41 and 7,170.89

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Solution

The fourth proportional to 12,206.21, 16,844.41 and 7,170.89 is: 9,895.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,206.21 : 16,844.41 = 7,170.89 : x
  2. Step 2: Convert to fraction form
    12,206.21/16,844.41 = 7,170.89/x
  3. Step 3: Cross multiply
    12,206.21x = 16,844.41 × 7,170.89
  4. Step 4: Simplify right side
    12,206.21x = 120,789,309.08
  5. Step 5: Solve for x
    x = 120,789,309.08/12,206.21
  6. Step 6: Final answer
    x = 9,895.73

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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.