Home / 12,329.54-17,047.16-11,778.74

Finding the Fourth Proportional to 12,329.54, 17,047.16 and 11,778.74

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Solution

The fourth proportional to 12,329.54, 17,047.16 and 11,778.74 is: 16,285.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,329.54 : 17,047.16 = 11,778.74 : x
  2. Step 2: Convert to fraction form
    12,329.54/17,047.16 = 11,778.74/x
  3. Step 3: Cross multiply
    12,329.54x = 17,047.16 × 11,778.74
  4. Step 4: Simplify right side
    12,329.54x = 200,794,065.38
  5. Step 5: Solve for x
    x = 200,794,065.38/12,329.54
  6. Step 6: Final answer
    x = 16,285.61

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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.