Home / 12,175.55-18,263.20-3,855.58

Finding the Fourth Proportional to 12,175.55, 18,263.20 and 3,855.58

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Solution

The fourth proportional to 12,175.55, 18,263.20 and 3,855.58 is: 5,783.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,175.55 : 18,263.20 = 3,855.58 : x
  2. Step 2: Convert to fraction form
    12,175.55/18,263.20 = 3,855.58/x
  3. Step 3: Cross multiply
    12,175.55x = 18,263.20 × 3,855.58
  4. Step 4: Simplify right side
    12,175.55x = 70,415,228.66
  5. Step 5: Solve for x
    x = 70,415,228.66/12,175.55
  6. Step 6: Final answer
    x = 5,783.33

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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.