Home / 8,679.12-11,976.28-4,901.96

Finding the Fourth Proportional to 8,679.12, 11,976.28 and 4,901.96

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Solution

The fourth proportional to 8,679.12, 11,976.28 and 4,901.96 is: 6,764.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,679.12 : 11,976.28 = 4,901.96 : x
  2. Step 2: Convert to fraction form
    8,679.12/11,976.28 = 4,901.96/x
  3. Step 3: Cross multiply
    8,679.12x = 11,976.28 × 4,901.96
  4. Step 4: Simplify right side
    8,679.12x = 58,707,245.51
  5. Step 5: Solve for x
    x = 58,707,245.51/8,679.12
  6. Step 6: Final answer
    x = 6,764.19

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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.