Home / 8,971.76-13,458.18-3,778.04

Finding the Fourth Proportional to 8,971.76, 13,458.18 and 3,778.04

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Solution

The fourth proportional to 8,971.76, 13,458.18 and 3,778.04 is: 5,667.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,971.76 : 13,458.18 = 3,778.04 : x
  2. Step 2: Convert to fraction form
    8,971.76/13,458.18 = 3,778.04/x
  3. Step 3: Cross multiply
    8,971.76x = 13,458.18 × 3,778.04
  4. Step 4: Simplify right side
    8,971.76x = 50,845,542.37
  5. Step 5: Solve for x
    x = 50,845,542.37/8,971.76
  6. Step 6: Final answer
    x = 5,667.29

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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.