Home / 11,172.22-16,725.52-8,815.74

Finding the Fourth Proportional to 11,172.22, 16,725.52 and 8,815.74

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Solution

The fourth proportional to 11,172.22, 16,725.52 and 8,815.74 is: 13,197.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,172.22 : 16,725.52 = 8,815.74 : x
  2. Step 2: Convert to fraction form
    11,172.22/16,725.52 = 8,815.74/x
  3. Step 3: Cross multiply
    11,172.22x = 16,725.52 × 8,815.74
  4. Step 4: Simplify right side
    11,172.22x = 147,447,835.68
  5. Step 5: Solve for x
    x = 147,447,835.68/11,172.22
  6. Step 6: Final answer
    x = 13,197.72

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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.