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Finding the Fourth Proportional to 18,273.60, 27,410.40 and 12,040.65

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Solution

The fourth proportional to 18,273.60, 27,410.40 and 12,040.65 is: 18,060.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,273.60 : 27,410.40 = 12,040.65 : x
  2. Step 2: Convert to fraction form
    18,273.60/27,410.40 = 12,040.65/x
  3. Step 3: Cross multiply
    18,273.60x = 27,410.40 × 12,040.65
  4. Step 4: Simplify right side
    18,273.60x = 330,039,032.76
  5. Step 5: Solve for x
    x = 330,039,032.76/18,273.60
  6. Step 6: Final answer
    x = 18,060.98

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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.