Home / 12,175.23-18,265.58-3,855.75

Finding the Fourth Proportional to 12,175.23, 18,265.58 and 3,855.75

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Solution

The fourth proportional to 12,175.23, 18,265.58 and 3,855.75 is: 5,784.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,175.23 : 18,265.58 = 3,855.75 : x
  2. Step 2: Convert to fraction form
    12,175.23/18,265.58 = 3,855.75/x
  3. Step 3: Cross multiply
    12,175.23x = 18,265.58 × 3,855.75
  4. Step 4: Simplify right side
    12,175.23x = 70,427,510.09
  5. Step 5: Solve for x
    x = 70,427,510.09/12,175.23
  6. Step 6: Final answer
    x = 5,784.49

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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.