Home / 11,722.60-16,177.20-6,618.16

Finding the Fourth Proportional to 11,722.60, 16,177.20 and 6,618.16

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Solution

The fourth proportional to 11,722.60, 16,177.20 and 6,618.16 is: 9,133.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,722.60 : 16,177.20 = 6,618.16 : x
  2. Step 2: Convert to fraction form
    11,722.60/16,177.20 = 6,618.16/x
  3. Step 3: Cross multiply
    11,722.60x = 16,177.20 × 6,618.16
  4. Step 4: Simplify right side
    11,722.60x = 107,063,297.95
  5. Step 5: Solve for x
    x = 107,063,297.95/11,722.60
  6. Step 6: Final answer
    x = 9,133.07

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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.