Home / 13,692.09-20,538.14-5,376.02

Finding the Fourth Proportional to 13,692.09, 20,538.14 and 5,376.02

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Solution

The fourth proportional to 13,692.09, 20,538.14 and 5,376.02 is: 8,064.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,692.09 : 20,538.14 = 5,376.02 : x
  2. Step 2: Convert to fraction form
    13,692.09/20,538.14 = 5,376.02/x
  3. Step 3: Cross multiply
    13,692.09x = 20,538.14 × 5,376.02
  4. Step 4: Simplify right side
    13,692.09x = 110,413,321.83
  5. Step 5: Solve for x
    x = 110,413,321.83/13,692.09
  6. Step 6: Final answer
    x = 8,064.02

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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.