Home / 12,226.13-16,872.90-6,920.96

Finding the Fourth Proportional to 12,226.13, 16,872.90 and 6,920.96

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Solution

The fourth proportional to 12,226.13, 16,872.90 and 6,920.96 is: 9,551.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,226.13 : 16,872.90 = 6,920.96 : x
  2. Step 2: Convert to fraction form
    12,226.13/16,872.90 = 6,920.96/x
  3. Step 3: Cross multiply
    12,226.13x = 16,872.90 × 6,920.96
  4. Step 4: Simplify right side
    12,226.13x = 116,776,708.17
  5. Step 5: Solve for x
    x = 116,776,708.17/12,226.13
  6. Step 6: Final answer
    x = 9,551.41

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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.