Home / 13,947.30-20,922.57-4,086.36

Finding the Fourth Proportional to 13,947.30, 20,922.57 and 4,086.36

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Solution

The fourth proportional to 13,947.30, 20,922.57 and 4,086.36 is: 6,130.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,947.30 : 20,922.57 = 4,086.36 : x
  2. Step 2: Convert to fraction form
    13,947.30/20,922.57 = 4,086.36/x
  3. Step 3: Cross multiply
    13,947.30x = 20,922.57 × 4,086.36
  4. Step 4: Simplify right side
    13,947.30x = 85,497,153.15
  5. Step 5: Solve for x
    x = 85,497,153.15/13,947.30
  6. Step 6: Final answer
    x = 6,130.01

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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.