Home / 12,249.50-16,904.31-6,660.50

Finding the Fourth Proportional to 12,249.50, 16,904.31 and 6,660.50

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Solution

The fourth proportional to 12,249.50, 16,904.31 and 6,660.50 is: 9,191.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,249.50 : 16,904.31 = 6,660.50 : x
  2. Step 2: Convert to fraction form
    12,249.50/16,904.31 = 6,660.50/x
  3. Step 3: Cross multiply
    12,249.50x = 16,904.31 × 6,660.50
  4. Step 4: Simplify right side
    12,249.50x = 112,591,156.76
  5. Step 5: Solve for x
    x = 112,591,156.76/12,249.50
  6. Step 6: Final answer
    x = 9,191.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.