Home / 18,692.98-25,799.11-11,986.18

Finding the Fourth Proportional to 18,692.98, 25,799.11 and 11,986.18

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Solution

The fourth proportional to 18,692.98, 25,799.11 and 11,986.18 is: 16,542.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,692.98 : 25,799.11 = 11,986.18 : x
  2. Step 2: Convert to fraction form
    18,692.98/25,799.11 = 11,986.18/x
  3. Step 3: Cross multiply
    18,692.98x = 25,799.11 × 11,986.18
  4. Step 4: Simplify right side
    18,692.98x = 309,232,681.84
  5. Step 5: Solve for x
    x = 309,232,681.84/18,692.98
  6. Step 6: Final answer
    x = 16,542.72

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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.