Home / 11,081.21-15,297.73-8,557.66

Finding the Fourth Proportional to 11,081.21, 15,297.73 and 8,557.66

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Solution

The fourth proportional to 11,081.21, 15,297.73 and 8,557.66 is: 11,813.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,081.21 : 15,297.73 = 8,557.66 : x
  2. Step 2: Convert to fraction form
    11,081.21/15,297.73 = 8,557.66/x
  3. Step 3: Cross multiply
    11,081.21x = 15,297.73 × 8,557.66
  4. Step 4: Simplify right side
    11,081.21x = 130,912,712.47
  5. Step 5: Solve for x
    x = 130,912,712.47/11,081.21
  6. Step 6: Final answer
    x = 11,813.93

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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.