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Finding the Fourth Proportional to 8,703.98, 13,055.89 and 2,130.11

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Solution

The fourth proportional to 8,703.98, 13,055.89 and 2,130.11 is: 3,195.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,703.98 : 13,055.89 = 2,130.11 : x
  2. Step 2: Convert to fraction form
    8,703.98/13,055.89 = 2,130.11/x
  3. Step 3: Cross multiply
    8,703.98x = 13,055.89 × 2,130.11
  4. Step 4: Simplify right side
    8,703.98x = 27,810,481.85
  5. Step 5: Solve for x
    x = 27,810,481.85/8,703.98
  6. Step 6: Final answer
    x = 3,195.15

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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.