Home / 7,983.26-11,011.28-6,919.14

Finding the Fourth Proportional to 7,983.26, 11,011.28 and 6,919.14

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Solution

The fourth proportional to 7,983.26, 11,011.28 and 6,919.14 is: 9,543.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,983.26 : 11,011.28 = 6,919.14 : x
  2. Step 2: Convert to fraction form
    7,983.26/11,011.28 = 6,919.14/x
  3. Step 3: Cross multiply
    7,983.26x = 11,011.28 × 6,919.14
  4. Step 4: Simplify right side
    7,983.26x = 76,188,553.30
  5. Step 5: Solve for x
    x = 76,188,553.30/7,983.26
  6. Step 6: Final answer
    x = 9,543.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.