Home / 13,986.72-20,975.09-4,625.01

Finding the Fourth Proportional to 13,986.72, 20,975.09 and 4,625.01

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Solution

The fourth proportional to 13,986.72, 20,975.09 and 4,625.01 is: 6,935.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,986.72 : 20,975.09 = 4,625.01 : x
  2. Step 2: Convert to fraction form
    13,986.72/20,975.09 = 4,625.01/x
  3. Step 3: Cross multiply
    13,986.72x = 20,975.09 × 4,625.01
  4. Step 4: Simplify right side
    13,986.72x = 97,009,977.88
  5. Step 5: Solve for x
    x = 97,009,977.88/13,986.72
  6. Step 6: Final answer
    x = 6,935.86

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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.