Home / 19,661.66-27,133.74-11,164.15

Finding the Fourth Proportional to 19,661.66, 27,133.74 and 11,164.15

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Solution

The fourth proportional to 19,661.66, 27,133.74 and 11,164.15 is: 15,406.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,661.66 : 27,133.74 = 11,164.15 : x
  2. Step 2: Convert to fraction form
    19,661.66/27,133.74 = 11,164.15/x
  3. Step 3: Cross multiply
    19,661.66x = 27,133.74 × 11,164.15
  4. Step 4: Simplify right side
    19,661.66x = 302,924,951.93
  5. Step 5: Solve for x
    x = 302,924,951.93/19,661.66
  6. Step 6: Final answer
    x = 15,406.89

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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.