Home / 16,806.96-25,221.78-12,656.52

Finding the Fourth Proportional to 16,806.96, 25,221.78 and 12,656.52

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Solution

The fourth proportional to 16,806.96, 25,221.78 and 12,656.52 is: 18,993.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,806.96 : 25,221.78 = 12,656.52 : x
  2. Step 2: Convert to fraction form
    16,806.96/25,221.78 = 12,656.52/x
  3. Step 3: Cross multiply
    16,806.96x = 25,221.78 × 12,656.52
  4. Step 4: Simplify right side
    16,806.96x = 319,219,963.01
  5. Step 5: Solve for x
    x = 319,219,963.01/16,806.96
  6. Step 6: Final answer
    x = 18,993.32

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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.