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Finding the Fourth Proportional to 8,782.00, 13,173.01 and 2,208.20

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Solution

The fourth proportional to 8,782.00, 13,173.01 and 2,208.20 is: 3,312.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,782.00 : 13,173.01 = 2,208.20 : x
  2. Step 2: Convert to fraction form
    8,782.00/13,173.01 = 2,208.20/x
  3. Step 3: Cross multiply
    8,782.00x = 13,173.01 × 2,208.20
  4. Step 4: Simplify right side
    8,782.00x = 29,088,569.30
  5. Step 5: Solve for x
    x = 29,088,569.30/8,782.00
  6. Step 6: Final answer
    x = 3,312.30

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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.