Home / 12,391.49-17,094.68-7,355.93

Finding the Fourth Proportional to 12,391.49, 17,094.68 and 7,355.93

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Solution

The fourth proportional to 12,391.49, 17,094.68 and 7,355.93 is: 10,147.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,391.49 : 17,094.68 = 7,355.93 : x
  2. Step 2: Convert to fraction form
    12,391.49/17,094.68 = 7,355.93/x
  3. Step 3: Cross multiply
    12,391.49x = 17,094.68 × 7,355.93
  4. Step 4: Simplify right side
    12,391.49x = 125,747,174.78
  5. Step 5: Solve for x
    x = 125,747,174.78/12,391.49
  6. Step 6: Final answer
    x = 10,147.86

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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.