Home / 7,976.74-11,005.68-4,789.18

Finding the Fourth Proportional to 7,976.74, 11,005.68 and 4,789.18

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Solution

The fourth proportional to 7,976.74, 11,005.68 and 4,789.18 is: 6,607.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,976.74 : 11,005.68 = 4,789.18 : x
  2. Step 2: Convert to fraction form
    7,976.74/11,005.68 = 4,789.18/x
  3. Step 3: Cross multiply
    7,976.74x = 11,005.68 × 4,789.18
  4. Step 4: Simplify right side
    7,976.74x = 52,708,182.54
  5. Step 5: Solve for x
    x = 52,708,182.54/7,976.74
  6. Step 6: Final answer
    x = 6,607.73

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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.