Home / 11,513.45-15,892.13-8,857.73

Finding the Fourth Proportional to 11,513.45, 15,892.13 and 8,857.73

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Solution

The fourth proportional to 11,513.45, 15,892.13 and 8,857.73 is: 12,226.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,513.45 : 15,892.13 = 8,857.73 : x
  2. Step 2: Convert to fraction form
    11,513.45/15,892.13 = 8,857.73/x
  3. Step 3: Cross multiply
    11,513.45x = 15,892.13 × 8,857.73
  4. Step 4: Simplify right side
    11,513.45x = 140,768,196.66
  5. Step 5: Solve for x
    x = 140,768,196.66/11,513.45
  6. Step 6: Final answer
    x = 12,226.41

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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.