Home / 14,221.48-21,350.70-10,936.90

Finding the Fourth Proportional to 14,221.48, 21,350.70 and 10,936.90

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Solution

The fourth proportional to 14,221.48, 21,350.70 and 10,936.90 is: 16,419.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,221.48 : 21,350.70 = 10,936.90 : x
  2. Step 2: Convert to fraction form
    14,221.48/21,350.70 = 10,936.90/x
  3. Step 3: Cross multiply
    14,221.48x = 21,350.70 × 10,936.90
  4. Step 4: Simplify right side
    14,221.48x = 233,510,470.83
  5. Step 5: Solve for x
    x = 233,510,470.83/14,221.48
  6. Step 6: Final answer
    x = 16,419.56

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1.5x scale

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.