Home / 11,237.13-16,770.24-9,991.61

Finding the Fourth Proportional to 11,237.13, 16,770.24 and 9,991.61

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Solution

The fourth proportional to 11,237.13, 16,770.24 and 9,991.61 is: 14,911.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,237.13 : 16,770.24 = 9,991.61 : x
  2. Step 2: Convert to fraction form
    11,237.13/16,770.24 = 9,991.61/x
  3. Step 3: Cross multiply
    11,237.13x = 16,770.24 × 9,991.61
  4. Step 4: Simplify right side
    11,237.13x = 167,561,697.69
  5. Step 5: Solve for x
    x = 167,561,697.69/11,237.13
  6. Step 6: Final answer
    x = 14,911.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.