Home / 11,286.87-16,919.16-5,353.35

Finding the Fourth Proportional to 11,286.87, 16,919.16 and 5,353.35

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Solution

The fourth proportional to 11,286.87, 16,919.16 and 5,353.35 is: 8,024.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,286.87 : 16,919.16 = 5,353.35 : x
  2. Step 2: Convert to fraction form
    11,286.87/16,919.16 = 5,353.35/x
  3. Step 3: Cross multiply
    11,286.87x = 16,919.16 × 5,353.35
  4. Step 4: Simplify right side
    11,286.87x = 90,574,185.19
  5. Step 5: Solve for x
    x = 90,574,185.19/11,286.87
  6. Step 6: Final answer
    x = 8,024.74

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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.