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Finding the Fourth Proportional to 11,394.80, 17,090.60 and 3,604.40

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Solution

The fourth proportional to 11,394.80, 17,090.60 and 3,604.40 is: 5,406.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,394.80 : 17,090.60 = 3,604.40 : x
  2. Step 2: Convert to fraction form
    11,394.80/17,090.60 = 3,604.40/x
  3. Step 3: Cross multiply
    11,394.80x = 17,090.60 × 3,604.40
  4. Step 4: Simplify right side
    11,394.80x = 61,601,358.64
  5. Step 5: Solve for x
    x = 61,601,358.64/11,394.80
  6. Step 6: Final answer
    x = 5,406.09

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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.