Home / 18,325.88-27,485.66-5,175.18

Finding the Fourth Proportional to 18,325.88, 27,485.66 and 5,175.18

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Solution

The fourth proportional to 18,325.88, 27,485.66 and 5,175.18 is: 7,761.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,325.88 : 27,485.66 = 5,175.18 : x
  2. Step 2: Convert to fraction form
    18,325.88/27,485.66 = 5,175.18/x
  3. Step 3: Cross multiply
    18,325.88x = 27,485.66 × 5,175.18
  4. Step 4: Simplify right side
    18,325.88x = 142,243,237.92
  5. Step 5: Solve for x
    x = 142,243,237.92/18,325.88
  6. Step 6: Final answer
    x = 7,761.88

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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.