Home / 12,636.88-18,962.15-5,246.44

Finding the Fourth Proportional to 12,636.88, 18,962.15 and 5,246.44

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Solution

The fourth proportional to 12,636.88, 18,962.15 and 5,246.44 is: 7,872.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,636.88 : 18,962.15 = 5,246.44 : x
  2. Step 2: Convert to fraction form
    12,636.88/18,962.15 = 5,246.44/x
  3. Step 3: Cross multiply
    12,636.88x = 18,962.15 × 5,246.44
  4. Step 4: Simplify right side
    12,636.88x = 99,483,708.61
  5. Step 5: Solve for x
    x = 99,483,708.61/12,636.88
  6. Step 6: Final answer
    x = 7,872.49

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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.