Home / 10,198.40-14,073.24-5,721.36

Finding the Fourth Proportional to 10,198.40, 14,073.24 and 5,721.36

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Solution

The fourth proportional to 10,198.40, 14,073.24 and 5,721.36 is: 7,895.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,198.40 : 14,073.24 = 5,721.36 : x
  2. Step 2: Convert to fraction form
    10,198.40/14,073.24 = 5,721.36/x
  3. Step 3: Cross multiply
    10,198.40x = 14,073.24 × 5,721.36
  4. Step 4: Simplify right side
    10,198.40x = 80,518,072.41
  5. Step 5: Solve for x
    x = 80,518,072.41/10,198.40
  6. Step 6: Final answer
    x = 7,895.17

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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.