Home / 12,939.75-17,849.57-8,462.48

Finding the Fourth Proportional to 12,939.75, 17,849.57 and 8,462.48

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Solution

The fourth proportional to 12,939.75, 17,849.57 and 8,462.48 is: 11,673.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,939.75 : 17,849.57 = 8,462.48 : x
  2. Step 2: Convert to fraction form
    12,939.75/17,849.57 = 8,462.48/x
  3. Step 3: Cross multiply
    12,939.75x = 17,849.57 × 8,462.48
  4. Step 4: Simplify right side
    12,939.75x = 151,051,497.57
  5. Step 5: Solve for x
    x = 151,051,497.57/12,939.75
  6. Step 6: Final answer
    x = 11,673.45

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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.