Home / 13,423.37-20,135.43-3,562.65

Finding the Fourth Proportional to 13,423.37, 20,135.43 and 3,562.65

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Solution

The fourth proportional to 13,423.37, 20,135.43 and 3,562.65 is: 5,344.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,423.37 : 20,135.43 = 3,562.65 : x
  2. Step 2: Convert to fraction form
    13,423.37/20,135.43 = 3,562.65/x
  3. Step 3: Cross multiply
    13,423.37x = 20,135.43 × 3,562.65
  4. Step 4: Simplify right side
    13,423.37x = 71,735,489.69
  5. Step 5: Solve for x
    x = 71,735,489.69/13,423.37
  6. Step 6: Final answer
    x = 5,344.08

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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.