Home / 14,944.80-20,619.28-8,656

Finding the Fourth Proportional to 14,944.80, 20,619.28 and 8,656

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Solution

The fourth proportional to 14,944.80, 20,619.28 and 8,656 is: 11,942.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,944.80 : 20,619.28 = 8,656 : x
  2. Step 2: Convert to fraction form
    14,944.80/20,619.28 = 8,656/x
  3. Step 3: Cross multiply
    14,944.80x = 20,619.28 × 8,656
  4. Step 4: Simplify right side
    14,944.80x = 178,480,487.68
  5. Step 5: Solve for x
    x = 178,480,487.68/14,944.80
  6. Step 6: Final answer
    x = 11,942.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.