Home / 11,918.50-16,447.08-6,612.94

Finding the Fourth Proportional to 11,918.50, 16,447.08 and 6,612.94

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Solution

The fourth proportional to 11,918.50, 16,447.08 and 6,612.94 is: 9,125.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.50 : 16,447.08 = 6,612.94 : x
  2. Step 2: Convert to fraction form
    11,918.50/16,447.08 = 6,612.94/x
  3. Step 3: Cross multiply
    11,918.50x = 16,447.08 × 6,612.94
  4. Step 4: Simplify right side
    11,918.50x = 108,763,553.22
  5. Step 5: Solve for x
    x = 108,763,553.22/11,918.50
  6. Step 6: Final answer
    x = 9,125.61

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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.