Home / 11,190.42-16,776.72-7,245.72

Finding the Fourth Proportional to 11,190.42, 16,776.72 and 7,245.72

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Solution

The fourth proportional to 11,190.42, 16,776.72 and 7,245.72 is: 10,862.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,190.42 : 16,776.72 = 7,245.72 : x
  2. Step 2: Convert to fraction form
    11,190.42/16,776.72 = 7,245.72/x
  3. Step 3: Cross multiply
    11,190.42x = 16,776.72 × 7,245.72
  4. Step 4: Simplify right side
    11,190.42x = 121,559,415.64
  5. Step 5: Solve for x
    x = 121,559,415.64/11,190.42
  6. Step 6: Final answer
    x = 10,862.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.