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Finding the Fourth Proportional to 9,137.88, 13,700.70 and 3,293.70

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Solution

The fourth proportional to 9,137.88, 13,700.70 and 3,293.70 is: 4,938.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,137.88 : 13,700.70 = 3,293.70 : x
  2. Step 2: Convert to fraction form
    9,137.88/13,700.70 = 3,293.70/x
  3. Step 3: Cross multiply
    9,137.88x = 13,700.70 × 3,293.70
  4. Step 4: Simplify right side
    9,137.88x = 45,125,995.59
  5. Step 5: Solve for x
    x = 45,125,995.59/9,137.88
  6. Step 6: Final answer
    x = 4,938.34

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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.