Home / 8,781.98-13,172.97-2,208.16

Finding the Fourth Proportional to 8,781.98, 13,172.97 and 2,208.16

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Solution

The fourth proportional to 8,781.98, 13,172.97 and 2,208.16 is: 3,312.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.98 : 13,172.97 = 2,208.16 : x
  2. Step 2: Convert to fraction form
    8,781.98/13,172.97 = 2,208.16/x
  3. Step 3: Cross multiply
    8,781.98x = 13,172.97 × 2,208.16
  4. Step 4: Simplify right side
    8,781.98x = 29,088,025.44
  5. Step 5: Solve for x
    x = 29,088,025.44/8,781.98
  6. Step 6: Final answer
    x = 3,312.24

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1.5x scale

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.