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Finding the Fourth Proportional to 8,203.85, 11,321.05 and 4,618.99

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Solution

The fourth proportional to 8,203.85, 11,321.05 and 4,618.99 is: 6,374.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,203.85 : 11,321.05 = 4,618.99 : x
  2. Step 2: Convert to fraction form
    8,203.85/11,321.05 = 4,618.99/x
  3. Step 3: Cross multiply
    8,203.85x = 11,321.05 × 4,618.99
  4. Step 4: Simplify right side
    8,203.85x = 52,291,828.00
  5. Step 5: Solve for x
    x = 52,291,828.00/8,203.85
  6. Step 6: Final answer
    x = 6,374.06

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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.