Home / 7,954.15-11,926.32-2,688.66

Finding the Fourth Proportional to 7,954.15, 11,926.32 and 2,688.66

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Solution

The fourth proportional to 7,954.15, 11,926.32 and 2,688.66 is: 4,031.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,954.15 : 11,926.32 = 2,688.66 : x
  2. Step 2: Convert to fraction form
    7,954.15/11,926.32 = 2,688.66/x
  3. Step 3: Cross multiply
    7,954.15x = 11,926.32 × 2,688.66
  4. Step 4: Simplify right side
    7,954.15x = 32,065,819.53
  5. Step 5: Solve for x
    x = 32,065,819.53/7,954.15
  6. Step 6: Final answer
    x = 4,031.33

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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.