Home / 19,199.36-26,487.84-11,640.80

Finding the Fourth Proportional to 19,199.36, 26,487.84 and 11,640.80

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Solution

The fourth proportional to 19,199.36, 26,487.84 and 11,640.80 is: 16,059.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,199.36 : 26,487.84 = 11,640.80 : x
  2. Step 2: Convert to fraction form
    19,199.36/26,487.84 = 11,640.80/x
  3. Step 3: Cross multiply
    19,199.36x = 26,487.84 × 11,640.80
  4. Step 4: Simplify right side
    19,199.36x = 308,339,647.87
  5. Step 5: Solve for x
    x = 308,339,647.87/19,199.36
  6. Step 6: Final answer
    x = 16,059.89

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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.