Home / 11,769.06-16,226.55-8,619.78

Finding the Fourth Proportional to 11,769.06, 16,226.55 and 8,619.78

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Solution

The fourth proportional to 11,769.06, 16,226.55 and 8,619.78 is: 11,884.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,769.06 : 16,226.55 = 8,619.78 : x
  2. Step 2: Convert to fraction form
    11,769.06/16,226.55 = 8,619.78/x
  3. Step 3: Cross multiply
    11,769.06x = 16,226.55 × 8,619.78
  4. Step 4: Simplify right side
    11,769.06x = 139,869,291.16
  5. Step 5: Solve for x
    x = 139,869,291.16/11,769.06
  6. Step 6: Final answer
    x = 11,884.49

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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.