Home / 13,991.24-20,981.82-4,629.53

Finding the Fourth Proportional to 13,991.24, 20,981.82 and 4,629.53

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Solution

The fourth proportional to 13,991.24, 20,981.82 and 4,629.53 is: 6,942.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,991.24 : 20,981.82 = 4,629.53 : x
  2. Step 2: Convert to fraction form
    13,991.24/20,981.82 = 4,629.53/x
  3. Step 3: Cross multiply
    13,991.24x = 20,981.82 × 4,629.53
  4. Step 4: Simplify right side
    13,991.24x = 97,136,034.96
  5. Step 5: Solve for x
    x = 97,136,034.96/13,991.24
  6. Step 6: Final answer
    x = 6,942.63

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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.