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Finding the Fourth Proportional to 7,979, 11,007.24 and 5,622.44

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Solution

The fourth proportional to 7,979, 11,007.24 and 5,622.44 is: 7,756.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979 : 11,007.24 = 5,622.44 : x
  2. Step 2: Convert to fraction form
    7,979/11,007.24 = 5,622.44/x
  3. Step 3: Cross multiply
    7,979x = 11,007.24 × 5,622.44
  4. Step 4: Simplify right side
    7,979x = 61,887,546.47
  5. Step 5: Solve for x
    x = 61,887,546.47/7,979
  6. Step 6: Final answer
    x = 7,756.30

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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.