Home / 18,114.42-27,175.72-6,427.64

Finding the Fourth Proportional to 18,114.42, 27,175.72 and 6,427.64

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Solution

The fourth proportional to 18,114.42, 27,175.72 and 6,427.64 is: 9,642.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,114.42 : 27,175.72 = 6,427.64 : x
  2. Step 2: Convert to fraction form
    18,114.42/27,175.72 = 6,427.64/x
  3. Step 3: Cross multiply
    18,114.42x = 27,175.72 × 6,427.64
  4. Step 4: Simplify right side
    18,114.42x = 174,675,744.90
  5. Step 5: Solve for x
    x = 174,675,744.90/18,114.42
  6. Step 6: Final answer
    x = 9,642.91

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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.