Home / 12,663.85-18,996.59-4,872.66

Finding the Fourth Proportional to 12,663.85, 18,996.59 and 4,872.66

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Solution

The fourth proportional to 12,663.85, 18,996.59 and 4,872.66 is: 7,309.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,663.85 : 18,996.59 = 4,872.66 : x
  2. Step 2: Convert to fraction form
    12,663.85/18,996.59 = 4,872.66/x
  3. Step 3: Cross multiply
    12,663.85x = 18,996.59 × 4,872.66
  4. Step 4: Simplify right side
    12,663.85x = 92,563,899.87
  5. Step 5: Solve for x
    x = 92,563,899.87/12,663.85
  6. Step 6: Final answer
    x = 7,309.30

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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.