Home / 13,390.76-20,081.82-5,070.44

Finding the Fourth Proportional to 13,390.76, 20,081.82 and 5,070.44

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Solution

The fourth proportional to 13,390.76, 20,081.82 and 5,070.44 is: 7,604.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,390.76 : 20,081.82 = 5,070.44 : x
  2. Step 2: Convert to fraction form
    13,390.76/20,081.82 = 5,070.44/x
  3. Step 3: Cross multiply
    13,390.76x = 20,081.82 × 5,070.44
  4. Step 4: Simplify right side
    13,390.76x = 101,823,663.40
  5. Step 5: Solve for x
    x = 101,823,663.40/13,390.76
  6. Step 6: Final answer
    x = 7,604.02

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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.