Home / 13,079.58-18,046.66-8,297.78

Finding the Fourth Proportional to 13,079.58, 18,046.66 and 8,297.78

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Solution

The fourth proportional to 13,079.58, 18,046.66 and 8,297.78 is: 11,448.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,079.58 : 18,046.66 = 8,297.78 : x
  2. Step 2: Convert to fraction form
    13,079.58/18,046.66 = 8,297.78/x
  3. Step 3: Cross multiply
    13,079.58x = 18,046.66 × 8,297.78
  4. Step 4: Simplify right side
    13,079.58x = 149,747,247.93
  5. Step 5: Solve for x
    x = 149,747,247.93/13,079.58
  6. Step 6: Final answer
    x = 11,448.94

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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.