Home / 8,705.20-13,054.69-3,157.11

Finding the Fourth Proportional to 8,705.20, 13,054.69 and 3,157.11

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Solution

The fourth proportional to 8,705.20, 13,054.69 and 3,157.11 is: 4,734.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,705.20 : 13,054.69 = 3,157.11 : x
  2. Step 2: Convert to fraction form
    8,705.20/13,054.69 = 3,157.11/x
  3. Step 3: Cross multiply
    8,705.20x = 13,054.69 × 3,157.11
  4. Step 4: Simplify right side
    8,705.20x = 41,215,092.35
  5. Step 5: Solve for x
    x = 41,215,092.35/8,705.20
  6. Step 6: Final answer
    x = 4,734.54

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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.