Home / 14,942.35-20,620.89-8,228.22

Finding the Fourth Proportional to 14,942.35, 20,620.89 and 8,228.22

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Solution

The fourth proportional to 14,942.35, 20,620.89 and 8,228.22 is: 11,355.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,942.35 : 20,620.89 = 8,228.22 : x
  2. Step 2: Convert to fraction form
    14,942.35/20,620.89 = 8,228.22/x
  3. Step 3: Cross multiply
    14,942.35x = 20,620.89 × 8,228.22
  4. Step 4: Simplify right side
    14,942.35x = 169,673,116.41
  5. Step 5: Solve for x
    x = 169,673,116.41/14,942.35
  6. Step 6: Final answer
    x = 11,355.19

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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.