Home / 7,979.92-11,013.72-4,622.24

Finding the Fourth Proportional to 7,979.92, 11,013.72 and 4,622.24

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Solution

The fourth proportional to 7,979.92, 11,013.72 and 4,622.24 is: 6,379.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.92 : 11,013.72 = 4,622.24 : x
  2. Step 2: Convert to fraction form
    7,979.92/11,013.72 = 4,622.24/x
  3. Step 3: Cross multiply
    7,979.92x = 11,013.72 × 4,622.24
  4. Step 4: Simplify right side
    7,979.92x = 50,908,057.13
  5. Step 5: Solve for x
    x = 50,908,057.13/7,979.92
  6. Step 6: Final answer
    x = 6,379.52

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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.