Home / 12,250.36-18,336.66-8,777.08

Finding the Fourth Proportional to 12,250.36, 18,336.66 and 8,777.08

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Solution

The fourth proportional to 12,250.36, 18,336.66 and 8,777.08 is: 13,137.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,250.36 : 18,336.66 = 8,777.08 : x
  2. Step 2: Convert to fraction form
    12,250.36/18,336.66 = 8,777.08/x
  3. Step 3: Cross multiply
    12,250.36x = 18,336.66 × 8,777.08
  4. Step 4: Simplify right side
    12,250.36x = 160,942,331.75
  5. Step 5: Solve for x
    x = 160,942,331.75/12,250.36
  6. Step 6: Final answer
    x = 13,137.76

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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.