Home / 19,665.83-27,136.51-11,167.89

Finding the Fourth Proportional to 19,665.83, 27,136.51 and 11,167.89

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Solution

The fourth proportional to 19,665.83, 27,136.51 and 11,167.89 is: 15,410.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,665.83 : 27,136.51 = 11,167.89 : x
  2. Step 2: Convert to fraction form
    19,665.83/27,136.51 = 11,167.89/x
  3. Step 3: Cross multiply
    19,665.83x = 27,136.51 × 11,167.89
  4. Step 4: Simplify right side
    19,665.83x = 303,057,558.66
  5. Step 5: Solve for x
    x = 303,057,558.66/19,665.83
  6. Step 6: Final answer
    x = 15,410.36

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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.