Home / 12,087.52-18,126.44-3,764.80

Finding the Fourth Proportional to 12,087.52, 18,126.44 and 3,764.80

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Solution

The fourth proportional to 12,087.52, 18,126.44 and 3,764.80 is: 5,645.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,087.52 : 18,126.44 = 3,764.80 : x
  2. Step 2: Convert to fraction form
    12,087.52/18,126.44 = 3,764.80/x
  3. Step 3: Cross multiply
    12,087.52x = 18,126.44 × 3,764.80
  4. Step 4: Simplify right side
    12,087.52x = 68,242,421.31
  5. Step 5: Solve for x
    x = 68,242,421.31/12,087.52
  6. Step 6: Final answer
    x = 5,645.69

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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.