Home / 11,080.99-15,297.40-8,557.43

Finding the Fourth Proportional to 11,080.99, 15,297.40 and 8,557.43

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Solution

The fourth proportional to 11,080.99, 15,297.40 and 8,557.43 is: 11,813.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,080.99 : 15,297.40 = 8,557.43 : x
  2. Step 2: Convert to fraction form
    11,080.99/15,297.40 = 8,557.43/x
  3. Step 3: Cross multiply
    11,080.99x = 15,297.40 × 8,557.43
  4. Step 4: Simplify right side
    11,080.99x = 130,906,429.68
  5. Step 5: Solve for x
    x = 130,906,429.68/11,080.99
  6. Step 6: Final answer
    x = 11,813.60

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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.