Home / 11,288.25-15,578.33-6,811.92

Finding the Fourth Proportional to 11,288.25, 15,578.33 and 6,811.92

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Solution

The fourth proportional to 11,288.25, 15,578.33 and 6,811.92 is: 9,400.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,288.25 : 15,578.33 = 6,811.92 : x
  2. Step 2: Convert to fraction form
    11,288.25/15,578.33 = 6,811.92/x
  3. Step 3: Cross multiply
    11,288.25x = 15,578.33 × 6,811.92
  4. Step 4: Simplify right side
    11,288.25x = 106,118,303.63
  5. Step 5: Solve for x
    x = 106,118,303.63/11,288.25
  6. Step 6: Final answer
    x = 9,400.78

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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.