Home / 12,087.14-18,126.36-4,187.52

Finding the Fourth Proportional to 12,087.14, 18,126.36 and 4,187.52

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Solution

The fourth proportional to 12,087.14, 18,126.36 and 4,187.52 is: 6,279.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,087.14 : 18,126.36 = 4,187.52 : x
  2. Step 2: Convert to fraction form
    12,087.14/18,126.36 = 4,187.52/x
  3. Step 3: Cross multiply
    12,087.14x = 18,126.36 × 4,187.52
  4. Step 4: Simplify right side
    12,087.14x = 75,904,495.03
  5. Step 5: Solve for x
    x = 75,904,495.03/12,087.14
  6. Step 6: Final answer
    x = 6,279.78

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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.