Home / 14,105.09-21,141.23-11,334.89

Finding the Fourth Proportional to 14,105.09, 21,141.23 and 11,334.89

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Solution

The fourth proportional to 14,105.09, 21,141.23 and 11,334.89 is: 16,989.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,105.09 : 21,141.23 = 11,334.89 : x
  2. Step 2: Convert to fraction form
    14,105.09/21,141.23 = 11,334.89/x
  3. Step 3: Cross multiply
    14,105.09x = 21,141.23 × 11,334.89
  4. Step 4: Simplify right side
    14,105.09x = 239,633,354.13
  5. Step 5: Solve for x
    x = 239,633,354.13/14,105.09
  6. Step 6: Final answer
    x = 16,989.15

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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.