Home / 7,976.08-11,005.92-4,439.20

Finding the Fourth Proportional to 7,976.08, 11,005.92 and 4,439.20

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Solution

The fourth proportional to 7,976.08, 11,005.92 and 4,439.20 is: 6,125.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,976.08 : 11,005.92 = 4,439.20 : x
  2. Step 2: Convert to fraction form
    7,976.08/11,005.92 = 4,439.20/x
  3. Step 3: Cross multiply
    7,976.08x = 11,005.92 × 4,439.20
  4. Step 4: Simplify right side
    7,976.08x = 48,857,480.06
  5. Step 5: Solve for x
    x = 48,857,480.06/7,976.08
  6. Step 6: Final answer
    x = 6,125.50

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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.