Home / 11,236.15-15,511.44-8,712.55

Finding the Fourth Proportional to 11,236.15, 15,511.44 and 8,712.55

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Solution

The fourth proportional to 11,236.15, 15,511.44 and 8,712.55 is: 12,027.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,236.15 : 15,511.44 = 8,712.55 : x
  2. Step 2: Convert to fraction form
    11,236.15/15,511.44 = 8,712.55/x
  3. Step 3: Cross multiply
    11,236.15x = 15,511.44 × 8,712.55
  4. Step 4: Simplify right side
    11,236.15x = 135,144,196.57
  5. Step 5: Solve for x
    x = 135,144,196.57/11,236.15
  6. Step 6: Final answer
    x = 12,027.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.