Home / 13,976.08-20,945.04-7,726.84

Finding the Fourth Proportional to 13,976.08, 20,945.04 and 7,726.84

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Solution

The fourth proportional to 13,976.08, 20,945.04 and 7,726.84 is: 11,579.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,976.08 : 20,945.04 = 7,726.84 : x
  2. Step 2: Convert to fraction form
    13,976.08/20,945.04 = 7,726.84/x
  3. Step 3: Cross multiply
    13,976.08x = 20,945.04 × 7,726.84
  4. Step 4: Simplify right side
    13,976.08x = 161,838,972.87
  5. Step 5: Solve for x
    x = 161,838,972.87/13,976.08
  6. Step 6: Final answer
    x = 11,579.71

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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.