Home / 12,845.25-19,267.88-3,611.25

Finding the Fourth Proportional to 12,845.25, 19,267.88 and 3,611.25

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Solution

The fourth proportional to 12,845.25, 19,267.88 and 3,611.25 is: 5,416.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,845.25 : 19,267.88 = 3,611.25 : x
  2. Step 2: Convert to fraction form
    12,845.25/19,267.88 = 3,611.25/x
  3. Step 3: Cross multiply
    12,845.25x = 19,267.88 × 3,611.25
  4. Step 4: Simplify right side
    12,845.25x = 69,581,131.65
  5. Step 5: Solve for x
    x = 69,581,131.65/12,845.25
  6. Step 6: Final answer
    x = 5,416.88

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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.