Home / 13,922.49-20,878.88-5,600.35

Finding the Fourth Proportional to 13,922.49, 20,878.88 and 5,600.35

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Solution

The fourth proportional to 13,922.49, 20,878.88 and 5,600.35 is: 8,398.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,922.49 : 20,878.88 = 5,600.35 : x
  2. Step 2: Convert to fraction form
    13,922.49/20,878.88 = 5,600.35/x
  3. Step 3: Cross multiply
    13,922.49x = 20,878.88 × 5,600.35
  4. Step 4: Simplify right side
    13,922.49x = 116,928,974.98
  5. Step 5: Solve for x
    x = 116,928,974.98/13,922.49
  6. Step 6: Final answer
    x = 8,398.57

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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.