Home / 19,664.08-27,135.46-11,165.09

Finding the Fourth Proportional to 19,664.08, 27,135.46 and 11,165.09

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Solution

The fourth proportional to 19,664.08, 27,135.46 and 11,165.09 is: 15,407.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,664.08 : 27,135.46 = 11,165.09 : x
  2. Step 2: Convert to fraction form
    19,664.08/27,135.46 = 11,165.09/x
  3. Step 3: Cross multiply
    19,664.08x = 27,135.46 × 11,165.09
  4. Step 4: Simplify right side
    19,664.08x = 302,969,717.41
  5. Step 5: Solve for x
    x = 302,969,717.41/19,664.08
  6. Step 6: Final answer
    x = 15,407.27

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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.