Home / 13,792.06-20,688.18-3,403.81

Finding the Fourth Proportional to 13,792.06, 20,688.18 and 3,403.81

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Solution

The fourth proportional to 13,792.06, 20,688.18 and 3,403.81 is: 5,105.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,792.06 : 20,688.18 = 3,403.81 : x
  2. Step 2: Convert to fraction form
    13,792.06/20,688.18 = 3,403.81/x
  3. Step 3: Cross multiply
    13,792.06x = 20,688.18 × 3,403.81
  4. Step 4: Simplify right side
    13,792.06x = 70,418,633.97
  5. Step 5: Solve for x
    x = 70,418,633.97/13,792.06
  6. Step 6: Final answer
    x = 5,105.74

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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.