Home / 13,921.54-19,212.60-7,633.92

Finding the Fourth Proportional to 13,921.54, 19,212.60 and 7,633.92

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Solution

The fourth proportional to 13,921.54, 19,212.60 and 7,633.92 is: 10,535.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,921.54 : 19,212.60 = 7,633.92 : x
  2. Step 2: Convert to fraction form
    13,921.54/19,212.60 = 7,633.92/x
  3. Step 3: Cross multiply
    13,921.54x = 19,212.60 × 7,633.92
  4. Step 4: Simplify right side
    13,921.54x = 146,667,355.33
  5. Step 5: Solve for x
    x = 146,667,355.33/13,921.54
  6. Step 6: Final answer
    x = 10,535.28

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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.