Home / 11,288.32-16,913.84-3,888.80

Finding the Fourth Proportional to 11,288.32, 16,913.84 and 3,888.80

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Solution

The fourth proportional to 11,288.32, 16,913.84 and 3,888.80 is: 5,826.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,288.32 : 16,913.84 = 3,888.80 : x
  2. Step 2: Convert to fraction form
    11,288.32/16,913.84 = 3,888.80/x
  3. Step 3: Cross multiply
    11,288.32x = 16,913.84 × 3,888.80
  4. Step 4: Simplify right side
    11,288.32x = 65,774,540.99
  5. Step 5: Solve for x
    x = 65,774,540.99/11,288.32
  6. Step 6: Final answer
    x = 5,826.78

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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.