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Finding the Fourth Proportional to 14,413.59, 19,895.72 and 8,447.19

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Solution

The fourth proportional to 14,413.59, 19,895.72 and 8,447.19 is: 11,660.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,413.59 : 19,895.72 = 8,447.19 : x
  2. Step 2: Convert to fraction form
    14,413.59/19,895.72 = 8,447.19/x
  3. Step 3: Cross multiply
    14,413.59x = 19,895.72 × 8,447.19
  4. Step 4: Simplify right side
    14,413.59x = 168,062,884.79
  5. Step 5: Solve for x
    x = 168,062,884.79/14,413.59
  6. Step 6: Final answer
    x = 11,660.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.