Home / 13,792.67-20,672.80-6,381.47

Finding the Fourth Proportional to 13,792.67, 20,672.80 and 6,381.47

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Solution

The fourth proportional to 13,792.67, 20,672.80 and 6,381.47 is: 9,564.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,792.67 : 20,672.80 = 6,381.47 : x
  2. Step 2: Convert to fraction form
    13,792.67/20,672.80 = 6,381.47/x
  3. Step 3: Cross multiply
    13,792.67x = 20,672.80 × 6,381.47
  4. Step 4: Simplify right side
    13,792.67x = 131,922,717.74
  5. Step 5: Solve for x
    x = 131,922,717.74/13,792.67
  6. Step 6: Final answer
    x = 9,564.70

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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.