Home / 13,937.91-20,906.58-5,617.69

Finding the Fourth Proportional to 13,937.91, 20,906.58 and 5,617.69

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Solution

The fourth proportional to 13,937.91, 20,906.58 and 5,617.69 is: 8,426.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,937.91 : 20,906.58 = 5,617.69 : x
  2. Step 2: Convert to fraction form
    13,937.91/20,906.58 = 5,617.69/x
  3. Step 3: Cross multiply
    13,937.91x = 20,906.58 × 5,617.69
  4. Step 4: Simplify right side
    13,937.91x = 117,446,685.40
  5. Step 5: Solve for x
    x = 117,446,685.40/13,937.91
  6. Step 6: Final answer
    x = 8,426.42

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1.5x scale

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.