Home / 12,553.89-18,814.41-9,409.17

Finding the Fourth Proportional to 12,553.89, 18,814.41 and 9,409.17

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Solution

The fourth proportional to 12,553.89, 18,814.41 and 9,409.17 is: 14,101.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,553.89 : 18,814.41 = 9,409.17 : x
  2. Step 2: Convert to fraction form
    12,553.89/18,814.41 = 9,409.17/x
  3. Step 3: Cross multiply
    12,553.89x = 18,814.41 × 9,409.17
  4. Step 4: Simplify right side
    12,553.89x = 177,027,982.14
  5. Step 5: Solve for x
    x = 177,027,982.14/12,553.89
  6. Step 6: Final answer
    x = 14,101.44

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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.