Home / 11,243.42-16,779.60-9,997.88

Finding the Fourth Proportional to 11,243.42, 16,779.60 and 9,997.88

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Solution

The fourth proportional to 11,243.42, 16,779.60 and 9,997.88 is: 14,920.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,243.42 : 16,779.60 = 9,997.88 : x
  2. Step 2: Convert to fraction form
    11,243.42/16,779.60 = 9,997.88/x
  3. Step 3: Cross multiply
    11,243.42x = 16,779.60 × 9,997.88
  4. Step 4: Simplify right side
    11,243.42x = 167,760,427.25
  5. Step 5: Solve for x
    x = 167,760,427.25/11,243.42
  6. Step 6: Final answer
    x = 14,920.76

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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.