Home / 8,166.15-12,248.96-2,619.86

Finding the Fourth Proportional to 8,166.15, 12,248.96 and 2,619.86

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Solution

The fourth proportional to 8,166.15, 12,248.96 and 2,619.86 is: 3,929.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,166.15 : 12,248.96 = 2,619.86 : x
  2. Step 2: Convert to fraction form
    8,166.15/12,248.96 = 2,619.86/x
  3. Step 3: Cross multiply
    8,166.15x = 12,248.96 × 2,619.86
  4. Step 4: Simplify right side
    8,166.15x = 32,090,486.00
  5. Step 5: Solve for x
    x = 32,090,486.00/8,166.15
  6. Step 6: Final answer
    x = 3,929.70

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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.