Home / 9,919.40-14,908.26-8,840.48

Finding the Fourth Proportional to 9,919.40, 14,908.26 and 8,840.48

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Solution

The fourth proportional to 9,919.40, 14,908.26 and 8,840.48 is: 13,286.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,919.40 : 14,908.26 = 8,840.48 : x
  2. Step 2: Convert to fraction form
    9,919.40/14,908.26 = 8,840.48/x
  3. Step 3: Cross multiply
    9,919.40x = 14,908.26 × 8,840.48
  4. Step 4: Simplify right side
    9,919.40x = 131,796,174.36
  5. Step 5: Solve for x
    x = 131,796,174.36/9,919.40
  6. Step 6: Final answer
    x = 13,286.71

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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.