Home / 13,440.35-18,542.89-9,241.31

Finding the Fourth Proportional to 13,440.35, 18,542.89 and 9,241.31

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Solution

The fourth proportional to 13,440.35, 18,542.89 and 9,241.31 is: 12,749.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440.35 : 18,542.89 = 9,241.31 : x
  2. Step 2: Convert to fraction form
    13,440.35/18,542.89 = 9,241.31/x
  3. Step 3: Cross multiply
    13,440.35x = 18,542.89 × 9,241.31
  4. Step 4: Simplify right side
    13,440.35x = 171,360,618.04
  5. Step 5: Solve for x
    x = 171,360,618.04/13,440.35
  6. Step 6: Final answer
    x = 12,749.71

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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.