Home / 13,719.26-20,578.47-5,393.27

Finding the Fourth Proportional to 13,719.26, 20,578.47 and 5,393.27

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Solution

The fourth proportional to 13,719.26, 20,578.47 and 5,393.27 is: 8,089.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719.26 : 20,578.47 = 5,393.27 : x
  2. Step 2: Convert to fraction form
    13,719.26/20,578.47 = 5,393.27/x
  3. Step 3: Cross multiply
    13,719.26x = 20,578.47 × 5,393.27
  4. Step 4: Simplify right side
    13,719.26x = 110,985,142.00
  5. Step 5: Solve for x
    x = 110,985,142.00/13,719.26
  6. Step 6: Final answer
    x = 8,089.74

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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.