Home / 11,238.12-16,857.10-8,775

Finding the Fourth Proportional to 11,238.12, 16,857.10 and 8,775

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Solution

The fourth proportional to 11,238.12, 16,857.10 and 8,775 is: 13,162.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,238.12 : 16,857.10 = 8,775 : x
  2. Step 2: Convert to fraction form
    11,238.12/16,857.10 = 8,775/x
  3. Step 3: Cross multiply
    11,238.12x = 16,857.10 × 8,775
  4. Step 4: Simplify right side
    11,238.12x = 147,921,052.50
  5. Step 5: Solve for x
    x = 147,921,052.50/11,238.12
  6. Step 6: Final answer
    x = 13,162.44

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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.