Home / 12,391.37-17,094.51-7,355.80

Finding the Fourth Proportional to 12,391.37, 17,094.51 and 7,355.80

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Solution

The fourth proportional to 12,391.37, 17,094.51 and 7,355.80 is: 10,147.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,391.37 : 17,094.51 = 7,355.80 : x
  2. Step 2: Convert to fraction form
    12,391.37/17,094.51 = 7,355.80/x
  3. Step 3: Cross multiply
    12,391.37x = 17,094.51 × 7,355.80
  4. Step 4: Simplify right side
    12,391.37x = 125,743,796.66
  5. Step 5: Solve for x
    x = 125,743,796.66/12,391.37
  6. Step 6: Final answer
    x = 10,147.69

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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.