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Finding the Fourth Proportional to 18,804.01, 28,201.68 and 5,476.98

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Solution

The fourth proportional to 18,804.01, 28,201.68 and 5,476.98 is: 8,214.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,804.01 : 28,201.68 = 5,476.98 : x
  2. Step 2: Convert to fraction form
    18,804.01/28,201.68 = 5,476.98/x
  3. Step 3: Cross multiply
    18,804.01x = 28,201.68 × 5,476.98
  4. Step 4: Simplify right side
    18,804.01x = 154,460,037.33
  5. Step 5: Solve for x
    x = 154,460,037.33/18,804.01
  6. Step 6: Final answer
    x = 8,214.21

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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.