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Finding the Fourth Proportional to 17,453.40, 26,136.90 and 13,997.40

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Solution

The fourth proportional to 17,453.40, 26,136.90 and 13,997.40 is: 20,961.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,453.40 : 26,136.90 = 13,997.40 : x
  2. Step 2: Convert to fraction form
    17,453.40/26,136.90 = 13,997.40/x
  3. Step 3: Cross multiply
    17,453.40x = 26,136.90 × 13,997.40
  4. Step 4: Simplify right side
    17,453.40x = 365,848,644.06
  5. Step 5: Solve for x
    x = 365,848,644.06/17,453.40
  6. Step 6: Final answer
    x = 20,961.45

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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.