Home / 6,976.71-9,624.96-3,991.86

Finding the Fourth Proportional to 6,976.71, 9,624.96 and 3,991.86

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Solution

The fourth proportional to 6,976.71, 9,624.96 and 3,991.86 is: 5,507.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,976.71 : 9,624.96 = 3,991.86 : x
  2. Step 2: Convert to fraction form
    6,976.71/9,624.96 = 3,991.86/x
  3. Step 3: Cross multiply
    6,976.71x = 9,624.96 × 3,991.86
  4. Step 4: Simplify right side
    6,976.71x = 38,421,492.83
  5. Step 5: Solve for x
    x = 38,421,492.83/6,976.71
  6. Step 6: Final answer
    x = 5,507.11

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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.