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Finding the Fourth Proportional to 12,520.07, 18,774.03 and 6,277.40

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Solution

The fourth proportional to 12,520.07, 18,774.03 and 6,277.40 is: 9,413.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,520.07 : 18,774.03 = 6,277.40 : x
  2. Step 2: Convert to fraction form
    12,520.07/18,774.03 = 6,277.40/x
  3. Step 3: Cross multiply
    12,520.07x = 18,774.03 × 6,277.40
  4. Step 4: Simplify right side
    12,520.07x = 117,852,095.92
  5. Step 5: Solve for x
    x = 117,852,095.92/12,520.07
  6. Step 6: Final answer
    x = 9,413.05

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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.