Home / 13,279.02-19,863.81-10,912.38

Finding the Fourth Proportional to 13,279.02, 19,863.81 and 10,912.38

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Solution

The fourth proportional to 13,279.02, 19,863.81 and 10,912.38 is: 16,323.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,279.02 : 19,863.81 = 10,912.38 : x
  2. Step 2: Convert to fraction form
    13,279.02/19,863.81 = 10,912.38/x
  3. Step 3: Cross multiply
    13,279.02x = 19,863.81 × 10,912.38
  4. Step 4: Simplify right side
    13,279.02x = 216,761,442.97
  5. Step 5: Solve for x
    x = 216,761,442.97/13,279.02
  6. Step 6: Final answer
    x = 16,323.60

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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.