Home / 13,792.43-20,680.83-12,616.91

Finding the Fourth Proportional to 13,792.43, 20,680.83 and 12,616.91

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Solution

The fourth proportional to 13,792.43, 20,680.83 and 12,616.91 is: 18,918.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,792.43 : 20,680.83 = 12,616.91 : x
  2. Step 2: Convert to fraction form
    13,792.43/20,680.83 = 12,616.91/x
  3. Step 3: Cross multiply
    13,792.43x = 20,680.83 × 12,616.91
  4. Step 4: Simplify right side
    13,792.43x = 260,928,170.84
  5. Step 5: Solve for x
    x = 260,928,170.84/13,792.43
  6. Step 6: Final answer
    x = 18,918.22

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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.