Home / 18,071.64-27,088.02-11,811.96

Finding the Fourth Proportional to 18,071.64, 27,088.02 and 11,811.96

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Solution

The fourth proportional to 18,071.64, 27,088.02 and 11,811.96 is: 17,705.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,071.64 : 27,088.02 = 11,811.96 : x
  2. Step 2: Convert to fraction form
    18,071.64/27,088.02 = 11,811.96/x
  3. Step 3: Cross multiply
    18,071.64x = 27,088.02 × 11,811.96
  4. Step 4: Simplify right side
    18,071.64x = 319,962,608.72
  5. Step 5: Solve for x
    x = 319,962,608.72/18,071.64
  6. Step 6: Final answer
    x = 17,705.23

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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.