Home / 13,587.72-20,387.37-5,692.08

Finding the Fourth Proportional to 13,587.72, 20,387.37 and 5,692.08

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Solution

The fourth proportional to 13,587.72, 20,387.37 and 5,692.08 is: 8,540.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,587.72 : 20,387.37 = 5,692.08 : x
  2. Step 2: Convert to fraction form
    13,587.72/20,387.37 = 5,692.08/x
  3. Step 3: Cross multiply
    13,587.72x = 20,387.37 × 5,692.08
  4. Step 4: Simplify right side
    13,587.72x = 116,046,541.03
  5. Step 5: Solve for x
    x = 116,046,541.03/13,587.72
  6. Step 6: Final answer
    x = 8,540.55

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