Home / 13,388.76-20,078.82-5,068.44

Finding the Fourth Proportional to 13,388.76, 20,078.82 and 5,068.44

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Solution

The fourth proportional to 13,388.76, 20,078.82 and 5,068.44 is: 7,601.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,388.76 : 20,078.82 = 5,068.44 : x
  2. Step 2: Convert to fraction form
    13,388.76/20,078.82 = 5,068.44/x
  3. Step 3: Cross multiply
    13,388.76x = 20,078.82 × 5,068.44
  4. Step 4: Simplify right side
    13,388.76x = 101,768,294.44
  5. Step 5: Solve for x
    x = 101,768,294.44/13,388.76
  6. Step 6: Final answer
    x = 7,601.02

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1.5x scale

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.