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Finding the Fourth Proportional to 18,840.48, 28,258.16 and 8,850.08

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Solution

The fourth proportional to 18,840.48, 28,258.16 and 8,850.08 is: 13,273.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,840.48 : 28,258.16 = 8,850.08 : x
  2. Step 2: Convert to fraction form
    18,840.48/28,258.16 = 8,850.08/x
  3. Step 3: Cross multiply
    18,840.48x = 28,258.16 × 8,850.08
  4. Step 4: Simplify right side
    18,840.48x = 250,086,976.65
  5. Step 5: Solve for x
    x = 250,086,976.65/18,840.48
  6. Step 6: Final answer
    x = 13,273.92

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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.