Home / 13,910.88-19,185.84-12,228.69

Finding the Fourth Proportional to 13,910.88, 19,185.84 and 12,228.69

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Solution

The fourth proportional to 13,910.88, 19,185.84 and 12,228.69 is: 16,865.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,910.88 : 19,185.84 = 12,228.69 : x
  2. Step 2: Convert to fraction form
    13,910.88/19,185.84 = 12,228.69/x
  3. Step 3: Cross multiply
    13,910.88x = 19,185.84 × 12,228.69
  4. Step 4: Simplify right side
    13,910.88x = 234,617,689.75
  5. Step 5: Solve for x
    x = 234,617,689.75/13,910.88
  6. Step 6: Final answer
    x = 16,865.77

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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.