Home / 18,136.44-27,204.80-4,989.53

Finding the Fourth Proportional to 18,136.44, 27,204.80 and 4,989.53

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Solution

The fourth proportional to 18,136.44, 27,204.80 and 4,989.53 is: 7,484.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,136.44 : 27,204.80 = 4,989.53 : x
  2. Step 2: Convert to fraction form
    18,136.44/27,204.80 = 4,989.53/x
  3. Step 3: Cross multiply
    18,136.44x = 27,204.80 × 4,989.53
  4. Step 4: Simplify right side
    18,136.44x = 135,739,208.81
  5. Step 5: Solve for x
    x = 135,739,208.81/18,136.44
  6. Step 6: Final answer
    x = 7,484.34

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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.