Home / 12,621.72-18,932.49-5,600.06

Finding the Fourth Proportional to 12,621.72, 18,932.49 and 5,600.06

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Solution

The fourth proportional to 12,621.72, 18,932.49 and 5,600.06 is: 8,400.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,621.72 : 18,932.49 = 5,600.06 : x
  2. Step 2: Convert to fraction form
    12,621.72/18,932.49 = 5,600.06/x
  3. Step 3: Cross multiply
    12,621.72x = 18,932.49 × 5,600.06
  4. Step 4: Simplify right side
    12,621.72x = 106,022,985.29
  5. Step 5: Solve for x
    x = 106,022,985.29/12,621.72
  6. Step 6: Final answer
    x = 8,400.04

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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.