Home / 8,124.74-12,187.17-2,578.10

Finding the Fourth Proportional to 8,124.74, 12,187.17 and 2,578.10

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Solution

The fourth proportional to 8,124.74, 12,187.17 and 2,578.10 is: 3,867.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,124.74 : 12,187.17 = 2,578.10 : x
  2. Step 2: Convert to fraction form
    8,124.74/12,187.17 = 2,578.10/x
  3. Step 3: Cross multiply
    8,124.74x = 12,187.17 × 2,578.10
  4. Step 4: Simplify right side
    8,124.74x = 31,419,742.98
  5. Step 5: Solve for x
    x = 31,419,742.98/8,124.74
  6. Step 6: Final answer
    x = 3,867.17

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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.