Home / 8,220.12-11,344.19-4,864.86

Finding the Fourth Proportional to 8,220.12, 11,344.19 and 4,864.86

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Solution

The fourth proportional to 8,220.12, 11,344.19 and 4,864.86 is: 6,713.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.12 : 11,344.19 = 4,864.86 : x
  2. Step 2: Convert to fraction form
    8,220.12/11,344.19 = 4,864.86/x
  3. Step 3: Cross multiply
    8,220.12x = 11,344.19 × 4,864.86
  4. Step 4: Simplify right side
    8,220.12x = 55,187,871.84
  5. Step 5: Solve for x
    x = 55,187,871.84/8,220.12
  6. Step 6: Final answer
    x = 6,713.76

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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.