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Finding the Fourth Proportional to 18,260.52, 27,390.06 and 12,697.48

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Solution

The fourth proportional to 18,260.52, 27,390.06 and 12,697.48 is: 19,045.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,260.52 : 27,390.06 = 12,697.48 : x
  2. Step 2: Convert to fraction form
    18,260.52/27,390.06 = 12,697.48/x
  3. Step 3: Cross multiply
    18,260.52x = 27,390.06 × 12,697.48
  4. Step 4: Simplify right side
    18,260.52x = 347,784,739.05
  5. Step 5: Solve for x
    x = 347,784,739.05/18,260.52
  6. Step 6: Final answer
    x = 19,045.72

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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.