Home / 13,851.66-20,777.79-4,491.68

Finding the Fourth Proportional to 13,851.66, 20,777.79 and 4,491.68

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Solution

The fourth proportional to 13,851.66, 20,777.79 and 4,491.68 is: 6,737.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,851.66 : 20,777.79 = 4,491.68 : x
  2. Step 2: Convert to fraction form
    13,851.66/20,777.79 = 4,491.68/x
  3. Step 3: Cross multiply
    13,851.66x = 20,777.79 × 4,491.68
  4. Step 4: Simplify right side
    13,851.66x = 93,327,274.03
  5. Step 5: Solve for x
    x = 93,327,274.03/13,851.66
  6. Step 6: Final answer
    x = 6,737.62

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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.