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Finding the Fourth Proportional to 12,354.37, 18,499.98 and 6,801.61

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Solution

The fourth proportional to 12,354.37, 18,499.98 and 6,801.61 is: 10,185.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,354.37 : 18,499.98 = 6,801.61 : x
  2. Step 2: Convert to fraction form
    12,354.37/18,499.98 = 6,801.61/x
  3. Step 3: Cross multiply
    12,354.37x = 18,499.98 × 6,801.61
  4. Step 4: Simplify right side
    12,354.37x = 125,829,648.97
  5. Step 5: Solve for x
    x = 125,829,648.97/12,354.37
  6. Step 6: Final answer
    x = 10,185.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.