Home / 13,792.07-20,680.25-12,616.56

Finding the Fourth Proportional to 13,792.07, 20,680.25 and 12,616.56

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Solution

The fourth proportional to 13,792.07, 20,680.25 and 12,616.56 is: 18,917.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,792.07 : 20,680.25 = 12,616.56 : x
  2. Step 2: Convert to fraction form
    13,792.07/20,680.25 = 12,616.56/x
  3. Step 3: Cross multiply
    13,792.07x = 20,680.25 × 12,616.56
  4. Step 4: Simplify right side
    13,792.07x = 260,913,551.86
  5. Step 5: Solve for x
    x = 260,913,551.86/13,792.07
  6. Step 6: Final answer
    x = 18,917.65

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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.