Home / 13,821.40-19,073.22-8,516.04

Finding the Fourth Proportional to 13,821.40, 19,073.22 and 8,516.04

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Solution

The fourth proportional to 13,821.40, 19,073.22 and 8,516.04 is: 11,751.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,821.40 : 19,073.22 = 8,516.04 : x
  2. Step 2: Convert to fraction form
    13,821.40/19,073.22 = 8,516.04/x
  3. Step 3: Cross multiply
    13,821.40x = 19,073.22 × 8,516.04
  4. Step 4: Simplify right side
    13,821.40x = 162,428,304.45
  5. Step 5: Solve for x
    x = 162,428,304.45/13,821.40
  6. Step 6: Final answer
    x = 11,751.94

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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.