Home / 14,640.09-21,909.06-11,976.81

Finding the Fourth Proportional to 14,640.09, 21,909.06 and 11,976.81

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Solution

The fourth proportional to 14,640.09, 21,909.06 and 11,976.81 is: 17,923.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,640.09 : 21,909.06 = 11,976.81 : x
  2. Step 2: Convert to fraction form
    14,640.09/21,909.06 = 11,976.81/x
  3. Step 3: Cross multiply
    14,640.09x = 21,909.06 × 11,976.81
  4. Step 4: Simplify right side
    14,640.09x = 262,400,648.90
  5. Step 5: Solve for x
    x = 262,400,648.90/14,640.09
  6. Step 6: Final answer
    x = 17,923.43

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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.