Home / 13,709.70-18,906.14-11,585.27

Finding the Fourth Proportional to 13,709.70, 18,906.14 and 11,585.27

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Solution

The fourth proportional to 13,709.70, 18,906.14 and 11,585.27 is: 15,976.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,709.70 : 18,906.14 = 11,585.27 : x
  2. Step 2: Convert to fraction form
    13,709.70/18,906.14 = 11,585.27/x
  3. Step 3: Cross multiply
    13,709.70x = 18,906.14 × 11,585.27
  4. Step 4: Simplify right side
    13,709.70x = 219,032,812.79
  5. Step 5: Solve for x
    x = 219,032,812.79/13,709.70
  6. Step 6: Final answer
    x = 15,976.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.