Home / 7,976.40-11,007.42-4,439.92

Finding the Fourth Proportional to 7,976.40, 11,007.42 and 4,439.92

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Solution

The fourth proportional to 7,976.40, 11,007.42 and 4,439.92 is: 6,127.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,976.40 : 11,007.42 = 4,439.92 : x
  2. Step 2: Convert to fraction form
    7,976.40/11,007.42 = 4,439.92/x
  3. Step 3: Cross multiply
    7,976.40x = 11,007.42 × 4,439.92
  4. Step 4: Simplify right side
    7,976.40x = 48,872,064.21
  5. Step 5: Solve for x
    x = 48,872,064.21/7,976.40
  6. Step 6: Final answer
    x = 6,127.08

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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.