Home / 13,641.03-18,822.94-8,603.35

Finding the Fourth Proportional to 13,641.03, 18,822.94 and 8,603.35

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Solution

The fourth proportional to 13,641.03, 18,822.94 and 8,603.35 is: 11,871.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,641.03 : 18,822.94 = 8,603.35 : x
  2. Step 2: Convert to fraction form
    13,641.03/18,822.94 = 8,603.35/x
  3. Step 3: Cross multiply
    13,641.03x = 18,822.94 × 8,603.35
  4. Step 4: Simplify right side
    13,641.03x = 161,940,272.28
  5. Step 5: Solve for x
    x = 161,940,272.28/13,641.03
  6. Step 6: Final answer
    x = 11,871.56

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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.