Home / 13,423.76-20,131.32-5,628.56

Finding the Fourth Proportional to 13,423.76, 20,131.32 and 5,628.56

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Solution

The fourth proportional to 13,423.76, 20,131.32 and 5,628.56 is: 8,441.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,423.76 : 20,131.32 = 5,628.56 : x
  2. Step 2: Convert to fraction form
    13,423.76/20,131.32 = 5,628.56/x
  3. Step 3: Cross multiply
    13,423.76x = 20,131.32 × 5,628.56
  4. Step 4: Simplify right side
    13,423.76x = 113,310,342.50
  5. Step 5: Solve for x
    x = 113,310,342.50/13,423.76
  6. Step 6: Final answer
    x = 8,441.03

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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.