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Finding the Fourth Proportional to 18,245.10, 27,326.13 and 12,702.60

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Solution

The fourth proportional to 18,245.10, 27,326.13 and 12,702.60 is: 19,024.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,245.10 : 27,326.13 = 12,702.60 : x
  2. Step 2: Convert to fraction form
    18,245.10/27,326.13 = 12,702.60/x
  3. Step 3: Cross multiply
    18,245.10x = 27,326.13 × 12,702.60
  4. Step 4: Simplify right side
    18,245.10x = 347,112,898.94
  5. Step 5: Solve for x
    x = 347,112,898.94/18,245.10
  6. Step 6: Final answer
    x = 19,024.99

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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.