Home / 12,175.53-18,249.46-5,151.16

Finding the Fourth Proportional to 12,175.53, 18,249.46 and 5,151.16

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Solution

The fourth proportional to 12,175.53, 18,249.46 and 5,151.16 is: 7,720.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,175.53 : 18,249.46 = 5,151.16 : x
  2. Step 2: Convert to fraction form
    12,175.53/18,249.46 = 5,151.16/x
  3. Step 3: Cross multiply
    12,175.53x = 18,249.46 × 5,151.16
  4. Step 4: Simplify right side
    12,175.53x = 94,005,797.13
  5. Step 5: Solve for x
    x = 94,005,797.13/12,175.53
  6. Step 6: Final answer
    x = 7,720.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.