Home / 8,221.21-11,346.01-4,685.56

Finding the Fourth Proportional to 8,221.21, 11,346.01 and 4,685.56

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Solution

The fourth proportional to 8,221.21, 11,346.01 and 4,685.56 is: 6,466.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,221.21 : 11,346.01 = 4,685.56 : x
  2. Step 2: Convert to fraction form
    8,221.21/11,346.01 = 4,685.56/x
  3. Step 3: Cross multiply
    8,221.21x = 11,346.01 × 4,685.56
  4. Step 4: Simplify right side
    8,221.21x = 53,162,370.54
  5. Step 5: Solve for x
    x = 53,162,370.54/8,221.21
  6. Step 6: Final answer
    x = 6,466.49

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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.