Home / 12,249.15-16,903.80-6,660.15

Finding the Fourth Proportional to 12,249.15, 16,903.80 and 6,660.15

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Solution

The fourth proportional to 12,249.15, 16,903.80 and 6,660.15 is: 9,190.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,249.15 : 16,903.80 = 6,660.15 : x
  2. Step 2: Convert to fraction form
    12,249.15/16,903.80 = 6,660.15/x
  3. Step 3: Cross multiply
    12,249.15x = 16,903.80 × 6,660.15
  4. Step 4: Simplify right side
    12,249.15x = 112,581,843.57
  5. Step 5: Solve for x
    x = 112,581,843.57/12,249.15
  6. Step 6: Final answer
    x = 9,190.99

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1.5x scale

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.