Home / 15,936.24-21,989.46-8,862.72

Finding the Fourth Proportional to 15,936.24, 21,989.46 and 8,862.72

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Solution

The fourth proportional to 15,936.24, 21,989.46 and 8,862.72 is: 12,229.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,936.24 : 21,989.46 = 8,862.72 : x
  2. Step 2: Convert to fraction form
    15,936.24/21,989.46 = 8,862.72/x
  3. Step 3: Cross multiply
    15,936.24x = 21,989.46 × 8,862.72
  4. Step 4: Simplify right side
    15,936.24x = 194,886,426.93
  5. Step 5: Solve for x
    x = 194,886,426.93/15,936.24
  6. Step 6: Final answer
    x = 12,229.13

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.