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Finding the Fourth Proportional to 18,804.08, 28,206.15 and 4,764.11

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Solution

The fourth proportional to 18,804.08, 28,206.15 and 4,764.11 is: 7,146.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,804.08 : 28,206.15 = 4,764.11 : x
  2. Step 2: Convert to fraction form
    18,804.08/28,206.15 = 4,764.11/x
  3. Step 3: Cross multiply
    18,804.08x = 28,206.15 × 4,764.11
  4. Step 4: Simplify right side
    18,804.08x = 134,377,201.28
  5. Step 5: Solve for x
    x = 134,377,201.28/18,804.08
  6. Step 6: Final answer
    x = 7,146.17

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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.