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Finding the Fourth Proportional to 19,048, 28,572 and 8,104

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Solution

The fourth proportional to 19,048, 28,572 and 8,104 is: 12,156

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,048 : 28,572 = 8,104 : x
  2. Step 2: Convert to fraction form
    19,048/28,572 = 8,104/x
  3. Step 3: Cross multiply
    19,048x = 28,572 × 8,104
  4. Step 4: Simplify right side
    19,048x = 231,547,488
  5. Step 5: Solve for x
    x = 231,547,488/19,048
  6. Step 6: Final answer
    x = 12,156

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.