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Finding the Fourth Proportional to 8,754.62, 13,123.74 and 3,820.22

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Solution

The fourth proportional to 8,754.62, 13,123.74 and 3,820.22 is: 5,726.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,754.62 : 13,123.74 = 3,820.22 : x
  2. Step 2: Convert to fraction form
    8,754.62/13,123.74 = 3,820.22/x
  3. Step 3: Cross multiply
    8,754.62x = 13,123.74 × 3,820.22
  4. Step 4: Simplify right side
    8,754.62x = 50,135,574.02
  5. Step 5: Solve for x
    x = 50,135,574.02/8,754.62
  6. Step 6: Final answer
    x = 5,726.76

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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.