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Finding the Fourth Proportional to 8,622.22, 12,922.51 and 3,686.06

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Solution

The fourth proportional to 8,622.22, 12,922.51 and 3,686.06 is: 5,524.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,622.22 : 12,922.51 = 3,686.06 : x
  2. Step 2: Convert to fraction form
    8,622.22/12,922.51 = 3,686.06/x
  3. Step 3: Cross multiply
    8,622.22x = 12,922.51 × 3,686.06
  4. Step 4: Simplify right side
    8,622.22x = 47,633,064.17
  5. Step 5: Solve for x
    x = 47,633,064.17/8,622.22
  6. Step 6: Final answer
    x = 5,524.45

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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.