Home / 9,921.09-14,873.76-4,919.96

Finding the Fourth Proportional to 9,921.09, 14,873.76 and 4,919.96

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Solution

The fourth proportional to 9,921.09, 14,873.76 and 4,919.96 is: 7,376.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,921.09 : 14,873.76 = 4,919.96 : x
  2. Step 2: Convert to fraction form
    9,921.09/14,873.76 = 4,919.96/x
  3. Step 3: Cross multiply
    9,921.09x = 14,873.76 × 4,919.96
  4. Step 4: Simplify right side
    9,921.09x = 73,178,229.88
  5. Step 5: Solve for x
    x = 73,178,229.88/9,921.09
  6. Step 6: Final answer
    x = 7,376.03

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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.