Home / 13,871.75-19,156.97-8,838.23

Finding the Fourth Proportional to 13,871.75, 19,156.97 and 8,838.23

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Solution

The fourth proportional to 13,871.75, 19,156.97 and 8,838.23 is: 12,205.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,871.75 : 19,156.97 = 8,838.23 : x
  2. Step 2: Convert to fraction form
    13,871.75/19,156.97 = 8,838.23/x
  3. Step 3: Cross multiply
    13,871.75x = 19,156.97 × 8,838.23
  4. Step 4: Simplify right side
    13,871.75x = 169,313,633.27
  5. Step 5: Solve for x
    x = 169,313,633.27/13,871.75
  6. Step 6: Final answer
    x = 12,205.65

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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.