Home / 21,345.97-29,459.22-11,786.73

Finding the Fourth Proportional to 21,345.97, 29,459.22 and 11,786.73

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Solution

The fourth proportional to 21,345.97, 29,459.22 and 11,786.73 is: 16,266.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,345.97 : 29,459.22 = 11,786.73 : x
  2. Step 2: Convert to fraction form
    21,345.97/29,459.22 = 11,786.73/x
  3. Step 3: Cross multiply
    21,345.97x = 29,459.22 × 11,786.73
  4. Step 4: Simplify right side
    21,345.97x = 347,227,792.06
  5. Step 5: Solve for x
    x = 347,227,792.06/21,345.97
  6. Step 6: Final answer
    x = 16,266.67

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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.