Home / 13,214.89-18,242.37-9,251.56

Finding the Fourth Proportional to 13,214.89, 18,242.37 and 9,251.56

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Solution

The fourth proportional to 13,214.89, 18,242.37 and 9,251.56 is: 12,771.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,214.89 : 18,242.37 = 9,251.56 : x
  2. Step 2: Convert to fraction form
    13,214.89/18,242.37 = 9,251.56/x
  3. Step 3: Cross multiply
    13,214.89x = 18,242.37 × 9,251.56
  4. Step 4: Simplify right side
    13,214.89x = 168,770,380.60
  5. Step 5: Solve for x
    x = 168,770,380.60/13,214.89
  6. Step 6: Final answer
    x = 12,771.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.