Home / 7,976.47-11,007.53-4,439.61

Finding the Fourth Proportional to 7,976.47, 11,007.53 and 4,439.61

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Solution

The fourth proportional to 7,976.47, 11,007.53 and 4,439.61 is: 6,126.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,976.47 : 11,007.53 = 4,439.61 : x
  2. Step 2: Convert to fraction form
    7,976.47/11,007.53 = 4,439.61/x
  3. Step 3: Cross multiply
    7,976.47x = 11,007.53 × 4,439.61
  4. Step 4: Simplify right side
    7,976.47x = 48,869,074.13
  5. Step 5: Solve for x
    x = 48,869,074.13/7,976.47
  6. Step 6: Final answer
    x = 6,126.65

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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.