Home / 13,900.34-20,850.69-4,540.29

Finding the Fourth Proportional to 13,900.34, 20,850.69 and 4,540.29

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Solution

The fourth proportional to 13,900.34, 20,850.69 and 4,540.29 is: 6,810.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,900.34 : 20,850.69 = 4,540.29 : x
  2. Step 2: Convert to fraction form
    13,900.34/20,850.69 = 4,540.29/x
  3. Step 3: Cross multiply
    13,900.34x = 20,850.69 × 4,540.29
  4. Step 4: Simplify right side
    13,900.34x = 94,668,179.30
  5. Step 5: Solve for x
    x = 94,668,179.30/13,900.34
  6. Step 6: Final answer
    x = 6,810.49

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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.