Home / 12,852.84-17,738.82-8,137.56

Finding the Fourth Proportional to 12,852.84, 17,738.82 and 8,137.56

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Solution

The fourth proportional to 12,852.84, 17,738.82 and 8,137.56 is: 11,231.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,852.84 : 17,738.82 = 8,137.56 : x
  2. Step 2: Convert to fraction form
    12,852.84/17,738.82 = 8,137.56/x
  3. Step 3: Cross multiply
    12,852.84x = 17,738.82 × 8,137.56
  4. Step 4: Simplify right side
    12,852.84x = 144,350,712.08
  5. Step 5: Solve for x
    x = 144,350,712.08/12,852.84
  6. Step 6: Final answer
    x = 11,231.04

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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.