Home / 12,530.14-18,782.91-8,087.12

Finding the Fourth Proportional to 12,530.14, 18,782.91 and 8,087.12

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Solution

The fourth proportional to 12,530.14, 18,782.91 and 8,087.12 is: 12,122.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,530.14 : 18,782.91 = 8,087.12 : x
  2. Step 2: Convert to fraction form
    12,530.14/18,782.91 = 8,087.12/x
  3. Step 3: Cross multiply
    12,530.14x = 18,782.91 × 8,087.12
  4. Step 4: Simplify right side
    12,530.14x = 151,899,593.56
  5. Step 5: Solve for x
    x = 151,899,593.56/12,530.14
  6. Step 6: Final answer
    x = 12,122.73

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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.