Home / 12,692.14-17,515.37-7,386.84

Finding the Fourth Proportional to 12,692.14, 17,515.37 and 7,386.84

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Solution

The fourth proportional to 12,692.14, 17,515.37 and 7,386.84 is: 10,193.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,692.14 : 17,515.37 = 7,386.84 : x
  2. Step 2: Convert to fraction form
    12,692.14/17,515.37 = 7,386.84/x
  3. Step 3: Cross multiply
    12,692.14x = 17,515.37 × 7,386.84
  4. Step 4: Simplify right side
    12,692.14x = 129,383,235.73
  5. Step 5: Solve for x
    x = 129,383,235.73/12,692.14
  6. Step 6: Final answer
    x = 10,193.97

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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.