Home / 13,409.16-20,124.80-6,747.54

Finding the Fourth Proportional to 13,409.16, 20,124.80 and 6,747.54

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Solution

The fourth proportional to 13,409.16, 20,124.80 and 6,747.54 is: 10,126.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,409.16 : 20,124.80 = 6,747.54 : x
  2. Step 2: Convert to fraction form
    13,409.16/20,124.80 = 6,747.54/x
  3. Step 3: Cross multiply
    13,409.16x = 20,124.80 × 6,747.54
  4. Step 4: Simplify right side
    13,409.16x = 135,792,892.99
  5. Step 5: Solve for x
    x = 135,792,892.99/13,409.16
  6. Step 6: Final answer
    x = 10,126.88

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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.