Home / 13,409.78-20,099.63-6,297.53

Finding the Fourth Proportional to 13,409.78, 20,099.63 and 6,297.53

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Solution

The fourth proportional to 13,409.78, 20,099.63 and 6,297.53 is: 9,439.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,409.78 : 20,099.63 = 6,297.53 : x
  2. Step 2: Convert to fraction form
    13,409.78/20,099.63 = 6,297.53/x
  3. Step 3: Cross multiply
    13,409.78x = 20,099.63 × 6,297.53
  4. Step 4: Simplify right side
    13,409.78x = 126,577,938.16
  5. Step 5: Solve for x
    x = 126,577,938.16/13,409.78
  6. Step 6: Final answer
    x = 9,439.23

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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.