Home / 21,313.67-29,412.19-11,753.96

Finding the Fourth Proportional to 21,313.67, 29,412.19 and 11,753.96

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Solution

The fourth proportional to 21,313.67, 29,412.19 and 11,753.96 is: 16,220.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,313.67 : 29,412.19 = 11,753.96 : x
  2. Step 2: Convert to fraction form
    21,313.67/29,412.19 = 11,753.96/x
  3. Step 3: Cross multiply
    21,313.67x = 29,412.19 × 11,753.96
  4. Step 4: Simplify right side
    21,313.67x = 345,709,704.77
  5. Step 5: Solve for x
    x = 345,709,704.77/21,313.67
  6. Step 6: Final answer
    x = 16,220.09

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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.