Home / 13,983.30-20,975.09-4,122.77

Finding the Fourth Proportional to 13,983.30, 20,975.09 and 4,122.77

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Solution

The fourth proportional to 13,983.30, 20,975.09 and 4,122.77 is: 6,184.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,983.30 : 20,975.09 = 4,122.77 : x
  2. Step 2: Convert to fraction form
    13,983.30/20,975.09 = 4,122.77/x
  3. Step 3: Cross multiply
    13,983.30x = 20,975.09 × 4,122.77
  4. Step 4: Simplify right side
    13,983.30x = 86,475,346.31
  5. Step 5: Solve for x
    x = 86,475,346.31/13,983.30
  6. Step 6: Final answer
    x = 6,184.19

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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.