Home / 13,881.11-20,821.66-4,647.11

Finding the Fourth Proportional to 13,881.11, 20,821.66 and 4,647.11

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Solution

The fourth proportional to 13,881.11, 20,821.66 and 4,647.11 is: 6,970.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,881.11 : 20,821.66 = 4,647.11 : x
  2. Step 2: Convert to fraction form
    13,881.11/20,821.66 = 4,647.11/x
  3. Step 3: Cross multiply
    13,881.11x = 20,821.66 × 4,647.11
  4. Step 4: Simplify right side
    13,881.11x = 96,760,544.40
  5. Step 5: Solve for x
    x = 96,760,544.40/13,881.11
  6. Step 6: Final answer
    x = 6,970.66

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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.