Home / 11,219.11-16,830.28-3,426.91

Finding the Fourth Proportional to 11,219.11, 16,830.28 and 3,426.91

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Solution

The fourth proportional to 11,219.11, 16,830.28 and 3,426.91 is: 5,140.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,219.11 : 16,830.28 = 3,426.91 : x
  2. Step 2: Convert to fraction form
    11,219.11/16,830.28 = 3,426.91/x
  3. Step 3: Cross multiply
    11,219.11x = 16,830.28 × 3,426.91
  4. Step 4: Simplify right side
    11,219.11x = 57,675,817.04
  5. Step 5: Solve for x
    x = 57,675,817.04/11,219.11
  6. Step 6: Final answer
    x = 5,140.86

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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.