Home / 13,111.24-19,640.94-9,828.04

Finding the Fourth Proportional to 13,111.24, 19,640.94 and 9,828.04

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Solution

The fourth proportional to 13,111.24, 19,640.94 and 9,828.04 is: 14,722.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,111.24 : 19,640.94 = 9,828.04 : x
  2. Step 2: Convert to fraction form
    13,111.24/19,640.94 = 9,828.04/x
  3. Step 3: Cross multiply
    13,111.24x = 19,640.94 × 9,828.04
  4. Step 4: Simplify right side
    13,111.24x = 193,031,943.96
  5. Step 5: Solve for x
    x = 193,031,943.96/13,111.24
  6. Step 6: Final answer
    x = 14,722.63

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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.