Home / 10,989.42-16,491.28-4,755.52

Finding the Fourth Proportional to 10,989.42, 16,491.28 and 4,755.52

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Solution

The fourth proportional to 10,989.42, 16,491.28 and 4,755.52 is: 7,136.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,989.42 : 16,491.28 = 4,755.52 : x
  2. Step 2: Convert to fraction form
    10,989.42/16,491.28 = 4,755.52/x
  3. Step 3: Cross multiply
    10,989.42x = 16,491.28 × 4,755.52
  4. Step 4: Simplify right side
    10,989.42x = 78,424,611.87
  5. Step 5: Solve for x
    x = 78,424,611.87/10,989.42
  6. Step 6: Final answer
    x = 7,136.37

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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.