Home / 11,729.20-16,186.08-7,010.80

Finding the Fourth Proportional to 11,729.20, 16,186.08 and 7,010.80

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Solution

The fourth proportional to 11,729.20, 16,186.08 and 7,010.80 is: 9,674.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,729.20 : 16,186.08 = 7,010.80 : x
  2. Step 2: Convert to fraction form
    11,729.20/16,186.08 = 7,010.80/x
  3. Step 3: Cross multiply
    11,729.20x = 16,186.08 × 7,010.80
  4. Step 4: Simplify right side
    11,729.20x = 113,477,369.66
  5. Step 5: Solve for x
    x = 113,477,369.66/11,729.20
  6. Step 6: Final answer
    x = 9,674.77

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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.