Home / 12,459.30-18,685.77-3,692.17

Finding the Fourth Proportional to 12,459.30, 18,685.77 and 3,692.17

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Solution

The fourth proportional to 12,459.30, 18,685.77 and 3,692.17 is: 5,537.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,459.30 : 18,685.77 = 3,692.17 : x
  2. Step 2: Convert to fraction form
    12,459.30/18,685.77 = 3,692.17/x
  3. Step 3: Cross multiply
    12,459.30x = 18,685.77 × 3,692.17
  4. Step 4: Simplify right side
    12,459.30x = 68,990,992.71
  5. Step 5: Solve for x
    x = 68,990,992.71/12,459.30
  6. Step 6: Final answer
    x = 5,537.31

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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.