Home / 18,667.48-25,785.66-13,943.56

Finding the Fourth Proportional to 18,667.48, 25,785.66 and 13,943.56

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Solution

The fourth proportional to 18,667.48, 25,785.66 and 13,943.56 is: 19,260.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,667.48 : 25,785.66 = 13,943.56 : x
  2. Step 2: Convert to fraction form
    18,667.48/25,785.66 = 13,943.56/x
  3. Step 3: Cross multiply
    18,667.48x = 25,785.66 × 13,943.56
  4. Step 4: Simplify right side
    18,667.48x = 359,543,897.35
  5. Step 5: Solve for x
    x = 359,543,897.35/18,667.48
  6. Step 6: Final answer
    x = 19,260.44

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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.