Home / 13,550.91-20,329.45-7,310.81

Finding the Fourth Proportional to 13,550.91, 20,329.45 and 7,310.81

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Solution

The fourth proportional to 13,550.91, 20,329.45 and 7,310.81 is: 10,967.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,550.91 : 20,329.45 = 7,310.81 : x
  2. Step 2: Convert to fraction form
    13,550.91/20,329.45 = 7,310.81/x
  3. Step 3: Cross multiply
    13,550.91x = 20,329.45 × 7,310.81
  4. Step 4: Simplify right side
    13,550.91x = 148,624,662.98
  5. Step 5: Solve for x
    x = 148,624,662.98/13,550.91
  6. Step 6: Final answer
    x = 10,967.87

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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.