Home / 19,288-26,619.08-12,219.96

Finding the Fourth Proportional to 19,288, 26,619.08 and 12,219.96

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Solution

The fourth proportional to 19,288, 26,619.08 and 12,219.96 is: 16,864.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,288 : 26,619.08 = 12,219.96 : x
  2. Step 2: Convert to fraction form
    19,288/26,619.08 = 12,219.96/x
  3. Step 3: Cross multiply
    19,288x = 26,619.08 × 12,219.96
  4. Step 4: Simplify right side
    19,288x = 325,284,092.84
  5. Step 5: Solve for x
    x = 325,284,092.84/19,288
  6. Step 6: Final answer
    x = 16,864.58

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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.