Home / 8,712.55-13,068.82-3,164.86

Finding the Fourth Proportional to 8,712.55, 13,068.82 and 3,164.86

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Solution

The fourth proportional to 8,712.55, 13,068.82 and 3,164.86 is: 4,747.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,712.55 : 13,068.82 = 3,164.86 : x
  2. Step 2: Convert to fraction form
    8,712.55/13,068.82 = 3,164.86/x
  3. Step 3: Cross multiply
    8,712.55x = 13,068.82 × 3,164.86
  4. Step 4: Simplify right side
    8,712.55x = 41,360,956.95
  5. Step 5: Solve for x
    x = 41,360,956.95/8,712.55
  6. Step 6: Final answer
    x = 4,747.29

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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.