Home / 12,692.55-17,539.82-9,543.27

Finding the Fourth Proportional to 12,692.55, 17,539.82 and 9,543.27

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Solution

The fourth proportional to 12,692.55, 17,539.82 and 9,543.27 is: 13,187.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,692.55 : 17,539.82 = 9,543.27 : x
  2. Step 2: Convert to fraction form
    12,692.55/17,539.82 = 9,543.27/x
  3. Step 3: Cross multiply
    12,692.55x = 17,539.82 × 9,543.27
  4. Step 4: Simplify right side
    12,692.55x = 167,387,190.30
  5. Step 5: Solve for x
    x = 167,387,190.30/12,692.55
  6. Step 6: Final answer
    x = 13,187.83

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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.