Home / 8,424.74-12,628.31-2,876.15

Finding the Fourth Proportional to 8,424.74, 12,628.31 and 2,876.15

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Solution

The fourth proportional to 8,424.74, 12,628.31 and 2,876.15 is: 4,311.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,424.74 : 12,628.31 = 2,876.15 : x
  2. Step 2: Convert to fraction form
    8,424.74/12,628.31 = 2,876.15/x
  3. Step 3: Cross multiply
    8,424.74x = 12,628.31 × 2,876.15
  4. Step 4: Simplify right side
    8,424.74x = 36,320,836.28
  5. Step 5: Solve for x
    x = 36,320,836.28/8,424.74
  6. Step 6: Final answer
    x = 4,311.21

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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.