Home / 12,446.13-18,672.84-3,681.28

Finding the Fourth Proportional to 12,446.13, 18,672.84 and 3,681.28

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Solution

The fourth proportional to 12,446.13, 18,672.84 and 3,681.28 is: 5,522.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,446.13 : 18,672.84 = 3,681.28 : x
  2. Step 2: Convert to fraction form
    12,446.13/18,672.84 = 3,681.28/x
  3. Step 3: Cross multiply
    12,446.13x = 18,672.84 × 3,681.28
  4. Step 4: Simplify right side
    12,446.13x = 68,739,905.75
  5. Step 5: Solve for x
    x = 68,739,905.75/12,446.13
  6. Step 6: Final answer
    x = 5,522.99

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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.