Home / 8,222.21-11,347.39-4,686.56

Finding the Fourth Proportional to 8,222.21, 11,347.39 and 4,686.56

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Solution

The fourth proportional to 8,222.21, 11,347.39 and 4,686.56 is: 6,467.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,222.21 : 11,347.39 = 4,686.56 : x
  2. Step 2: Convert to fraction form
    8,222.21/11,347.39 = 4,686.56/x
  3. Step 3: Cross multiply
    8,222.21x = 11,347.39 × 4,686.56
  4. Step 4: Simplify right side
    8,222.21x = 53,180,224.08
  5. Step 5: Solve for x
    x = 53,180,224.08/8,222.21
  6. Step 6: Final answer
    x = 6,467.87

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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.