Home / 8,258.81-12,390.10-3,579.60

Finding the Fourth Proportional to 8,258.81, 12,390.10 and 3,579.60

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Solution

The fourth proportional to 8,258.81, 12,390.10 and 3,579.60 is: 5,370.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,258.81 : 12,390.10 = 3,579.60 : x
  2. Step 2: Convert to fraction form
    8,258.81/12,390.10 = 3,579.60/x
  3. Step 3: Cross multiply
    8,258.81x = 12,390.10 × 3,579.60
  4. Step 4: Simplify right side
    8,258.81x = 44,351,610.91
  5. Step 5: Solve for x
    x = 44,351,610.91/8,258.81
  6. Step 6: Final answer
    x = 5,370.22

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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.