Home / 12,125.67-18,188.55-3,692.25

Finding the Fourth Proportional to 12,125.67, 18,188.55 and 3,692.25

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Solution

The fourth proportional to 12,125.67, 18,188.55 and 3,692.25 is: 5,538.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,125.67 : 18,188.55 = 3,692.25 : x
  2. Step 2: Convert to fraction form
    12,125.67/18,188.55 = 3,692.25/x
  3. Step 3: Cross multiply
    12,125.67x = 18,188.55 × 3,692.25
  4. Step 4: Simplify right side
    12,125.67x = 67,156,673.74
  5. Step 5: Solve for x
    x = 67,156,673.74/12,125.67
  6. Step 6: Final answer
    x = 5,538.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.