Home / 7,976.28-11,007-4,439.64

Finding the Fourth Proportional to 7,976.28, 11,007 and 4,439.64

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Solution

The fourth proportional to 7,976.28, 11,007 and 4,439.64 is: 6,126.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,976.28 : 11,007 = 4,439.64 : x
  2. Step 2: Convert to fraction form
    7,976.28/11,007 = 4,439.64/x
  3. Step 3: Cross multiply
    7,976.28x = 11,007 × 4,439.64
  4. Step 4: Simplify right side
    7,976.28x = 48,867,117.48
  5. Step 5: Solve for x
    x = 48,867,117.48/7,976.28
  6. Step 6: Final answer
    x = 6,126.55

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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.