Home / 13,609.04-20,418.37-4,251.43

Finding the Fourth Proportional to 13,609.04, 20,418.37 and 4,251.43

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Solution

The fourth proportional to 13,609.04, 20,418.37 and 4,251.43 is: 6,378.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609.04 : 20,418.37 = 4,251.43 : x
  2. Step 2: Convert to fraction form
    13,609.04/20,418.37 = 4,251.43/x
  3. Step 3: Cross multiply
    13,609.04x = 20,418.37 × 4,251.43
  4. Step 4: Simplify right side
    13,609.04x = 86,807,209.09
  5. Step 5: Solve for x
    x = 86,807,209.09/13,609.04
  6. Step 6: Final answer
    x = 6,378.64

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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.