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Finding the Fourth Proportional to 9,090.63, 13,635.81 and 2,934.63

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Solution

The fourth proportional to 9,090.63, 13,635.81 and 2,934.63 is: 4,401.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,090.63 : 13,635.81 = 2,934.63 : x
  2. Step 2: Convert to fraction form
    9,090.63/13,635.81 = 2,934.63/x
  3. Step 3: Cross multiply
    9,090.63x = 13,635.81 × 2,934.63
  4. Step 4: Simplify right side
    9,090.63x = 40,016,057.10
  5. Step 5: Solve for x
    x = 40,016,057.10/9,090.63
  6. Step 6: Final answer
    x = 4,401.90

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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.