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Finding the Fourth Proportional to 18,574.37, 27,861.27 and 7,480.77

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Solution

The fourth proportional to 18,574.37, 27,861.27 and 7,480.77 is: 11,221.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,574.37 : 27,861.27 = 7,480.77 : x
  2. Step 2: Convert to fraction form
    18,574.37/27,861.27 = 7,480.77/x
  3. Step 3: Cross multiply
    18,574.37x = 27,861.27 × 7,480.77
  4. Step 4: Simplify right side
    18,574.37x = 208,423,724.73
  5. Step 5: Solve for x
    x = 208,423,724.73/18,574.37
  6. Step 6: Final answer
    x = 11,221.04

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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.