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Finding the Fourth Proportional to 8,703.88, 13,054.38 and 2,860.54

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Solution

The fourth proportional to 8,703.88, 13,054.38 and 2,860.54 is: 4,290.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,703.88 : 13,054.38 = 2,860.54 : x
  2. Step 2: Convert to fraction form
    8,703.88/13,054.38 = 2,860.54/x
  3. Step 3: Cross multiply
    8,703.88x = 13,054.38 × 2,860.54
  4. Step 4: Simplify right side
    8,703.88x = 37,342,576.17
  5. Step 5: Solve for x
    x = 37,342,576.17/8,703.88
  6. Step 6: Final answer
    x = 4,290.34

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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.