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Finding the Fourth Proportional to 8,859.03, 13,290.18 and 3,665.31

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Solution

The fourth proportional to 8,859.03, 13,290.18 and 3,665.31 is: 5,498.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.03 : 13,290.18 = 3,665.31 : x
  2. Step 2: Convert to fraction form
    8,859.03/13,290.18 = 3,665.31/x
  3. Step 3: Cross multiply
    8,859.03x = 13,290.18 × 3,665.31
  4. Step 4: Simplify right side
    8,859.03x = 48,712,629.66
  5. Step 5: Solve for x
    x = 48,712,629.66/8,859.03
  6. Step 6: Final answer
    x = 5,498.64

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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.