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Finding the Fourth Proportional to 8,258.90, 12,390.17 and 3,064.77

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Solution

The fourth proportional to 8,258.90, 12,390.17 and 3,064.77 is: 4,597.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,258.90 : 12,390.17 = 3,064.77 : x
  2. Step 2: Convert to fraction form
    8,258.90/12,390.17 = 3,064.77/x
  3. Step 3: Cross multiply
    8,258.90x = 12,390.17 × 3,064.77
  4. Step 4: Simplify right side
    8,258.90x = 37,973,005.99
  5. Step 5: Solve for x
    x = 37,973,005.99/8,258.90
  6. Step 6: Final answer
    x = 4,597.83

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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.