Home / 14,942.26-20,619.39-8,972.56

Finding the Fourth Proportional to 14,942.26, 20,619.39 and 8,972.56

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Solution

The fourth proportional to 14,942.26, 20,619.39 and 8,972.56 is: 12,381.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,942.26 : 20,619.39 = 8,972.56 : x
  2. Step 2: Convert to fraction form
    14,942.26/20,619.39 = 8,972.56/x
  3. Step 3: Cross multiply
    14,942.26x = 20,619.39 × 8,972.56
  4. Step 4: Simplify right side
    14,942.26x = 185,008,713.94
  5. Step 5: Solve for x
    x = 185,008,713.94/14,942.26
  6. Step 6: Final answer
    x = 12,381.58

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1.5x scale

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.