Home / 11,126.84-16,688.97-2,806.85

Finding the Fourth Proportional to 11,126.84, 16,688.97 and 2,806.85

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Solution

The fourth proportional to 11,126.84, 16,688.97 and 2,806.85 is: 4,209.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,126.84 : 16,688.97 = 2,806.85 : x
  2. Step 2: Convert to fraction form
    11,126.84/16,688.97 = 2,806.85/x
  3. Step 3: Cross multiply
    11,126.84x = 16,688.97 × 2,806.85
  4. Step 4: Simplify right side
    11,126.84x = 46,843,477.17
  5. Step 5: Solve for x
    x = 46,843,477.17/11,126.84
  6. Step 6: Final answer
    x = 4,209.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.