Home / 12,506.55-18,759.83-4,185.02

Finding the Fourth Proportional to 12,506.55, 18,759.83 and 4,185.02

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Solution

The fourth proportional to 12,506.55, 18,759.83 and 4,185.02 is: 6,277.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,506.55 : 18,759.83 = 4,185.02 : x
  2. Step 2: Convert to fraction form
    12,506.55/18,759.83 = 4,185.02/x
  3. Step 3: Cross multiply
    12,506.55x = 18,759.83 × 4,185.02
  4. Step 4: Simplify right side
    12,506.55x = 78,510,149.02
  5. Step 5: Solve for x
    x = 78,510,149.02/12,506.55
  6. Step 6: Final answer
    x = 6,277.52

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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.