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Finding the Fourth Proportional to 9,090.63, 13,635.95 and 2,850.39

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Solution

The fourth proportional to 9,090.63, 13,635.95 and 2,850.39 is: 4,275.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,090.63 : 13,635.95 = 2,850.39 : x
  2. Step 2: Convert to fraction form
    9,090.63/13,635.95 = 2,850.39/x
  3. Step 3: Cross multiply
    9,090.63x = 13,635.95 × 2,850.39
  4. Step 4: Simplify right side
    9,090.63x = 38,867,761.27
  5. Step 5: Solve for x
    x = 38,867,761.27/9,090.63
  6. Step 6: Final answer
    x = 4,275.59

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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.