Home / 13,135.35-18,126.07-7,469.33

Finding the Fourth Proportional to 13,135.35, 18,126.07 and 7,469.33

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Solution

The fourth proportional to 13,135.35, 18,126.07 and 7,469.33 is: 10,307.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,135.35 : 18,126.07 = 7,469.33 : x
  2. Step 2: Convert to fraction form
    13,135.35/18,126.07 = 7,469.33/x
  3. Step 3: Cross multiply
    13,135.35x = 18,126.07 × 7,469.33
  4. Step 4: Simplify right side
    13,135.35x = 135,389,625.07
  5. Step 5: Solve for x
    x = 135,389,625.07/13,135.35
  6. Step 6: Final answer
    x = 10,307.27

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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.