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Finding the Fourth Proportional to 13,836.07, 20,758.07 and 6,818.18

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Solution

The fourth proportional to 13,836.07, 20,758.07 and 6,818.18 is: 10,229.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,836.07 : 20,758.07 = 6,818.18 : x
  2. Step 2: Convert to fraction form
    13,836.07/20,758.07 = 6,818.18/x
  3. Step 3: Cross multiply
    13,836.07x = 20,758.07 × 6,818.18
  4. Step 4: Simplify right side
    13,836.07x = 141,532,170.97
  5. Step 5: Solve for x
    x = 141,532,170.97/13,836.07
  6. Step 6: Final answer
    x = 10,229.22

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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.