Home / 8,722.12-13,083.20-3,531.64

Finding the Fourth Proportional to 8,722.12, 13,083.20 and 3,531.64

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Solution

The fourth proportional to 8,722.12, 13,083.20 and 3,531.64 is: 5,297.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,722.12 : 13,083.20 = 3,531.64 : x
  2. Step 2: Convert to fraction form
    8,722.12/13,083.20 = 3,531.64/x
  3. Step 3: Cross multiply
    8,722.12x = 13,083.20 × 3,531.64
  4. Step 4: Simplify right side
    8,722.12x = 46,205,152.45
  5. Step 5: Solve for x
    x = 46,205,152.45/8,722.12
  6. Step 6: Final answer
    x = 5,297.47

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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.