Home / 8,971.86-13,459.16-2,731.62

Finding the Fourth Proportional to 8,971.86, 13,459.16 and 2,731.62

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Solution

The fourth proportional to 8,971.86, 13,459.16 and 2,731.62 is: 4,097.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,971.86 : 13,459.16 = 2,731.62 : x
  2. Step 2: Convert to fraction form
    8,971.86/13,459.16 = 2,731.62/x
  3. Step 3: Cross multiply
    8,971.86x = 13,459.16 × 2,731.62
  4. Step 4: Simplify right side
    8,971.86x = 36,765,367.94
  5. Step 5: Solve for x
    x = 36,765,367.94/8,971.86
  6. Step 6: Final answer
    x = 4,097.85

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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.