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Finding the Fourth Proportional to 8,522.98, 12,772.78 and 4,354.22

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Solution

The fourth proportional to 8,522.98, 12,772.78 and 4,354.22 is: 6,525.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,522.98 : 12,772.78 = 4,354.22 : x
  2. Step 2: Convert to fraction form
    8,522.98/12,772.78 = 4,354.22/x
  3. Step 3: Cross multiply
    8,522.98x = 12,772.78 × 4,354.22
  4. Step 4: Simplify right side
    8,522.98x = 55,615,494.13
  5. Step 5: Solve for x
    x = 55,615,494.13/8,522.98
  6. Step 6: Final answer
    x = 6,525.36

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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.