Home / 9,997.12-14,979.28-3,419.76

Finding the Fourth Proportional to 9,997.12, 14,979.28 and 3,419.76

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Solution

The fourth proportional to 9,997.12, 14,979.28 and 3,419.76 is: 5,124.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,997.12 : 14,979.28 = 3,419.76 : x
  2. Step 2: Convert to fraction form
    9,997.12/14,979.28 = 3,419.76/x
  3. Step 3: Cross multiply
    9,997.12x = 14,979.28 × 3,419.76
  4. Step 4: Simplify right side
    9,997.12x = 51,225,542.57
  5. Step 5: Solve for x
    x = 51,225,542.57/9,997.12
  6. Step 6: Final answer
    x = 5,124.03

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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.