Home / 12,852.11-17,715.84-11,821.05

Finding the Fourth Proportional to 12,852.11, 17,715.84 and 11,821.05

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Solution

The fourth proportional to 12,852.11, 17,715.84 and 11,821.05 is: 16,294.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,852.11 : 17,715.84 = 11,821.05 : x
  2. Step 2: Convert to fraction form
    12,852.11/17,715.84 = 11,821.05/x
  3. Step 3: Cross multiply
    12,852.11x = 17,715.84 × 11,821.05
  4. Step 4: Simplify right side
    12,852.11x = 209,419,830.43
  5. Step 5: Solve for x
    x = 209,419,830.43/12,852.11
  6. Step 6: Final answer
    x = 16,294.59

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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.