Home / 11,801.78-16,287.30-8,738.66

Finding the Fourth Proportional to 11,801.78, 16,287.30 and 8,738.66

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Solution

The fourth proportional to 11,801.78, 16,287.30 and 8,738.66 is: 12,059.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,801.78 : 16,287.30 = 8,738.66 : x
  2. Step 2: Convert to fraction form
    11,801.78/16,287.30 = 8,738.66/x
  3. Step 3: Cross multiply
    11,801.78x = 16,287.30 × 8,738.66
  4. Step 4: Simplify right side
    11,801.78x = 142,329,177.02
  5. Step 5: Solve for x
    x = 142,329,177.02/11,801.78
  6. Step 6: Final answer
    x = 12,059.98

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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.