Home / 13,971.45-20,960.66-4,612

Finding the Fourth Proportional to 13,971.45, 20,960.66 and 4,612

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Solution

The fourth proportional to 13,971.45, 20,960.66 and 4,612 is: 6,919.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971.45 : 20,960.66 = 4,612 : x
  2. Step 2: Convert to fraction form
    13,971.45/20,960.66 = 4,612/x
  3. Step 3: Cross multiply
    13,971.45x = 20,960.66 × 4,612
  4. Step 4: Simplify right side
    13,971.45x = 96,670,563.92
  5. Step 5: Solve for x
    x = 96,670,563.92/13,971.45
  6. Step 6: Final answer
    x = 6,919.15

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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.