Home / 13,991.72-20,982.60-4,630

Finding the Fourth Proportional to 13,991.72, 20,982.60 and 4,630

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Solution

The fourth proportional to 13,991.72, 20,982.60 and 4,630 is: 6,943.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,991.72 : 20,982.60 = 4,630 : x
  2. Step 2: Convert to fraction form
    13,991.72/20,982.60 = 4,630/x
  3. Step 3: Cross multiply
    13,991.72x = 20,982.60 × 4,630
  4. Step 4: Simplify right side
    13,991.72x = 97,149,438
  5. Step 5: Solve for x
    x = 97,149,438/13,991.72
  6. Step 6: Final answer
    x = 6,943.35

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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.