Home / 11,081.24-15,297.75-8,557.68

Finding the Fourth Proportional to 11,081.24, 15,297.75 and 8,557.68

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Solution

The fourth proportional to 11,081.24, 15,297.75 and 8,557.68 is: 11,813.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,081.24 : 15,297.75 = 8,557.68 : x
  2. Step 2: Convert to fraction form
    11,081.24/15,297.75 = 8,557.68/x
  3. Step 3: Cross multiply
    11,081.24x = 15,297.75 × 8,557.68
  4. Step 4: Simplify right side
    11,081.24x = 130,913,249.22
  5. Step 5: Solve for x
    x = 130,913,249.22/11,081.24
  6. Step 6: Final answer
    x = 11,813.95

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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.