Home / 15,826.66-21,790.80-13,936.96

Finding the Fourth Proportional to 15,826.66, 21,790.80 and 13,936.96

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Solution

The fourth proportional to 15,826.66, 21,790.80 and 13,936.96 is: 19,188.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,826.66 : 21,790.80 = 13,936.96 : x
  2. Step 2: Convert to fraction form
    15,826.66/21,790.80 = 13,936.96/x
  3. Step 3: Cross multiply
    15,826.66x = 21,790.80 × 13,936.96
  4. Step 4: Simplify right side
    15,826.66x = 303,697,507.97
  5. Step 5: Solve for x
    x = 303,697,507.97/15,826.66
  6. Step 6: Final answer
    x = 19,188.98

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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.