Home / 14,519.18-21,777.15-3,989.99

Finding the Fourth Proportional to 14,519.18, 21,777.15 and 3,989.99

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Solution

The fourth proportional to 14,519.18, 21,777.15 and 3,989.99 is: 5,984.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,519.18 : 21,777.15 = 3,989.99 : x
  2. Step 2: Convert to fraction form
    14,519.18/21,777.15 = 3,989.99/x
  3. Step 3: Cross multiply
    14,519.18x = 21,777.15 × 3,989.99
  4. Step 4: Simplify right side
    14,519.18x = 86,890,680.13
  5. Step 5: Solve for x
    x = 86,890,680.13/14,519.18
  6. Step 6: Final answer
    x = 5,984.54

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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.