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Finding the Fourth Proportional to 13,093.40, 19,640.10 and 11,365.40

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Solution

The fourth proportional to 13,093.40, 19,640.10 and 11,365.40 is: 17,048.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,093.40 : 19,640.10 = 11,365.40 : x
  2. Step 2: Convert to fraction form
    13,093.40/19,640.10 = 11,365.40/x
  3. Step 3: Cross multiply
    13,093.40x = 19,640.10 × 11,365.40
  4. Step 4: Simplify right side
    13,093.40x = 223,217,592.54
  5. Step 5: Solve for x
    x = 223,217,592.54/13,093.40
  6. Step 6: Final answer
    x = 17,048.10

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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.