Home / 12,577.14-18,868.63-3,692.11

Finding the Fourth Proportional to 12,577.14, 18,868.63 and 3,692.11

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Solution

The fourth proportional to 12,577.14, 18,868.63 and 3,692.11 is: 5,539.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,577.14 : 18,868.63 = 3,692.11 : x
  2. Step 2: Convert to fraction form
    12,577.14/18,868.63 = 3,692.11/x
  3. Step 3: Cross multiply
    12,577.14x = 18,868.63 × 3,692.11
  4. Step 4: Simplify right side
    12,577.14x = 69,665,057.51
  5. Step 5: Solve for x
    x = 69,665,057.51/12,577.14
  6. Step 6: Final answer
    x = 5,539.02

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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.