Home / 8,424.69-12,628.15-3,156.26

Finding the Fourth Proportional to 8,424.69, 12,628.15 and 3,156.26

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Solution

The fourth proportional to 8,424.69, 12,628.15 and 3,156.26 is: 4,731.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,424.69 : 12,628.15 = 3,156.26 : x
  2. Step 2: Convert to fraction form
    8,424.69/12,628.15 = 3,156.26/x
  3. Step 3: Cross multiply
    8,424.69x = 12,628.15 × 3,156.26
  4. Step 4: Simplify right side
    8,424.69x = 39,857,708.94
  5. Step 5: Solve for x
    x = 39,857,708.94/8,424.69
  6. Step 6: Final answer
    x = 4,731.06

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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.