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Finding the Fourth Proportional to 9,959, 14,939.44 and 2,939.04

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Solution

The fourth proportional to 9,959, 14,939.44 and 2,939.04 is: 4,408.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,959 : 14,939.44 = 2,939.04 : x
  2. Step 2: Convert to fraction form
    9,959/14,939.44 = 2,939.04/x
  3. Step 3: Cross multiply
    9,959x = 14,939.44 × 2,939.04
  4. Step 4: Simplify right side
    9,959x = 43,907,611.74
  5. Step 5: Solve for x
    x = 43,907,611.74/9,959
  6. Step 6: Final answer
    x = 4,408.84

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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.