Home / 13,983.83-21,071.36-11,571.83

Finding the Fourth Proportional to 13,983.83, 21,071.36 and 11,571.83

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Solution

The fourth proportional to 13,983.83, 21,071.36 and 11,571.83 is: 17,436.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,983.83 : 21,071.36 = 11,571.83 : x
  2. Step 2: Convert to fraction form
    13,983.83/21,071.36 = 11,571.83/x
  3. Step 3: Cross multiply
    13,983.83x = 21,071.36 × 11,571.83
  4. Step 4: Simplify right side
    13,983.83x = 243,834,195.79
  5. Step 5: Solve for x
    x = 243,834,195.79/13,983.83
  6. Step 6: Final answer
    x = 17,436.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.