Home / 8,189.70-12,282.72-3,258.01

Finding the Fourth Proportional to 8,189.70, 12,282.72 and 3,258.01

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Solution

The fourth proportional to 8,189.70, 12,282.72 and 3,258.01 is: 4,886.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,189.70 : 12,282.72 = 3,258.01 : x
  2. Step 2: Convert to fraction form
    8,189.70/12,282.72 = 3,258.01/x
  3. Step 3: Cross multiply
    8,189.70x = 12,282.72 × 3,258.01
  4. Step 4: Simplify right side
    8,189.70x = 40,017,224.59
  5. Step 5: Solve for x
    x = 40,017,224.59/8,189.70
  6. Step 6: Final answer
    x = 4,886.29

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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.