Home / 12,113.97-18,172.98-3,792.33

Finding the Fourth Proportional to 12,113.97, 18,172.98 and 3,792.33

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Solution

The fourth proportional to 12,113.97, 18,172.98 and 3,792.33 is: 5,689.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,113.97 : 18,172.98 = 3,792.33 : x
  2. Step 2: Convert to fraction form
    12,113.97/18,172.98 = 3,792.33/x
  3. Step 3: Cross multiply
    12,113.97x = 18,172.98 × 3,792.33
  4. Step 4: Simplify right side
    12,113.97x = 68,917,918.28
  5. Step 5: Solve for x
    x = 68,917,918.28/12,113.97
  6. Step 6: Final answer
    x = 5,689.13

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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.