Home / 13,393.49-20,091.78-5,079.71

Finding the Fourth Proportional to 13,393.49, 20,091.78 and 5,079.71

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Solution

The fourth proportional to 13,393.49, 20,091.78 and 5,079.71 is: 7,620.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,393.49 : 20,091.78 = 5,079.71 : x
  2. Step 2: Convert to fraction form
    13,393.49/20,091.78 = 5,079.71/x
  3. Step 3: Cross multiply
    13,393.49x = 20,091.78 × 5,079.71
  4. Step 4: Simplify right side
    13,393.49x = 102,060,466.01
  5. Step 5: Solve for x
    x = 102,060,466.01/13,393.49
  6. Step 6: Final answer
    x = 7,620.16

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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.