Home / 12,266.20-18,390.14-3,941.47

Finding the Fourth Proportional to 12,266.20, 18,390.14 and 3,941.47

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Solution

The fourth proportional to 12,266.20, 18,390.14 and 3,941.47 is: 5,909.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,266.20 : 18,390.14 = 3,941.47 : x
  2. Step 2: Convert to fraction form
    12,266.20/18,390.14 = 3,941.47/x
  3. Step 3: Cross multiply
    12,266.20x = 18,390.14 × 3,941.47
  4. Step 4: Simplify right side
    12,266.20x = 72,484,185.11
  5. Step 5: Solve for x
    x = 72,484,185.11/12,266.20
  6. Step 6: Final answer
    x = 5,909.26

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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.