Home / 19,520.36-29,279.60-6,371

Finding the Fourth Proportional to 19,520.36, 29,279.60 and 6,371

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Solution

The fourth proportional to 19,520.36, 29,279.60 and 6,371 is: 9,556.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,520.36 : 29,279.60 = 6,371 : x
  2. Step 2: Convert to fraction form
    19,520.36/29,279.60 = 6,371/x
  3. Step 3: Cross multiply
    19,520.36x = 29,279.60 × 6,371
  4. Step 4: Simplify right side
    19,520.36x = 186,540,331.60
  5. Step 5: Solve for x
    x = 186,540,331.60/19,520.36
  6. Step 6: Final answer
    x = 9,556.19

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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.