Home / 13,883.16-20,822.58-4,647

Finding the Fourth Proportional to 13,883.16, 20,822.58 and 4,647

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Solution

The fourth proportional to 13,883.16, 20,822.58 and 4,647 is: 6,969.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,883.16 : 20,822.58 = 4,647 : x
  2. Step 2: Convert to fraction form
    13,883.16/20,822.58 = 4,647/x
  3. Step 3: Cross multiply
    13,883.16x = 20,822.58 × 4,647
  4. Step 4: Simplify right side
    13,883.16x = 96,762,529.26
  5. Step 5: Solve for x
    x = 96,762,529.26/13,883.16
  6. Step 6: Final answer
    x = 6,969.78

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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.