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Finding the Fourth Proportional to 12,850.88, 19,276.34 and 3,616.88

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Solution

The fourth proportional to 12,850.88, 19,276.34 and 3,616.88 is: 5,425.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,850.88 : 19,276.34 = 3,616.88 : x
  2. Step 2: Convert to fraction form
    12,850.88/19,276.34 = 3,616.88/x
  3. Step 3: Cross multiply
    12,850.88x = 19,276.34 × 3,616.88
  4. Step 4: Simplify right side
    12,850.88x = 69,720,094.15
  5. Step 5: Solve for x
    x = 69,720,094.15/12,850.88
  6. Step 6: Final answer
    x = 5,425.32

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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.