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Finding the Fourth Proportional to 15,163.53, 20,926.80 and 8,792.07

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Solution

The fourth proportional to 15,163.53, 20,926.80 and 8,792.07 is: 12,133.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,163.53 : 20,926.80 = 8,792.07 : x
  2. Step 2: Convert to fraction form
    15,163.53/20,926.80 = 8,792.07/x
  3. Step 3: Cross multiply
    15,163.53x = 20,926.80 × 8,792.07
  4. Step 4: Simplify right side
    15,163.53x = 183,989,890.48
  5. Step 5: Solve for x
    x = 183,989,890.48/15,163.53
  6. Step 6: Final answer
    x = 12,133.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.