Home / 12,226.14-16,871.99-6,920.91

Finding the Fourth Proportional to 12,226.14, 16,871.99 and 6,920.91

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Solution

The fourth proportional to 12,226.14, 16,871.99 and 6,920.91 is: 9,550.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,226.14 : 16,871.99 = 6,920.91 : x
  2. Step 2: Convert to fraction form
    12,226.14/16,871.99 = 6,920.91/x
  3. Step 3: Cross multiply
    12,226.14x = 16,871.99 × 6,920.91
  4. Step 4: Simplify right side
    12,226.14x = 116,769,489.71
  5. Step 5: Solve for x
    x = 116,769,489.71/12,226.14
  6. Step 6: Final answer
    x = 9,550.81

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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.