Home / 8,220.82-11,353.89-7,598.74

Finding the Fourth Proportional to 8,220.82, 11,353.89 and 7,598.74

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Solution

The fourth proportional to 8,220.82, 11,353.89 and 7,598.74 is: 10,494.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.82 : 11,353.89 = 7,598.74 : x
  2. Step 2: Convert to fraction form
    8,220.82/11,353.89 = 7,598.74/x
  3. Step 3: Cross multiply
    8,220.82x = 11,353.89 × 7,598.74
  4. Step 4: Simplify right side
    8,220.82x = 86,275,258.10
  5. Step 5: Solve for x
    x = 86,275,258.10/8,220.82
  6. Step 6: Final answer
    x = 10,494.73

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Half scale
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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.