Home / 8,221.39-12,338.91-5,258.46

Finding the Fourth Proportional to 8,221.39, 12,338.91 and 5,258.46

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Solution

The fourth proportional to 8,221.39, 12,338.91 and 5,258.46 is: 7,892.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,221.39 : 12,338.91 = 5,258.46 : x
  2. Step 2: Convert to fraction form
    8,221.39/12,338.91 = 5,258.46/x
  3. Step 3: Cross multiply
    8,221.39x = 12,338.91 × 5,258.46
  4. Step 4: Simplify right side
    8,221.39x = 64,883,664.68
  5. Step 5: Solve for x
    x = 64,883,664.68/8,221.39
  6. Step 6: Final answer
    x = 7,892.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.