Home / 11,811.81-17,728.64-5,972.52

Finding the Fourth Proportional to 11,811.81, 17,728.64 and 5,972.52

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Solution

The fourth proportional to 11,811.81, 17,728.64 and 5,972.52 is: 8,964.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,811.81 : 17,728.64 = 5,972.52 : x
  2. Step 2: Convert to fraction form
    11,811.81/17,728.64 = 5,972.52/x
  3. Step 3: Cross multiply
    11,811.81x = 17,728.64 × 5,972.52
  4. Step 4: Simplify right side
    11,811.81x = 105,884,583.26
  5. Step 5: Solve for x
    x = 105,884,583.26/11,811.81
  6. Step 6: Final answer
    x = 8,964.30

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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.