Home / 13,124.70-19,696.27-11,869.90

Finding the Fourth Proportional to 13,124.70, 19,696.27 and 11,869.90

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Solution

The fourth proportional to 13,124.70, 19,696.27 and 11,869.90 is: 17,813.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,124.70 : 19,696.27 = 11,869.90 : x
  2. Step 2: Convert to fraction form
    13,124.70/19,696.27 = 11,869.90/x
  3. Step 3: Cross multiply
    13,124.70x = 19,696.27 × 11,869.90
  4. Step 4: Simplify right side
    13,124.70x = 233,792,755.27
  5. Step 5: Solve for x
    x = 233,792,755.27/13,124.70
  6. Step 6: Final answer
    x = 17,813.19

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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.