Home / 18,426.18-25,413.51-11,958.76

Finding the Fourth Proportional to 18,426.18, 25,413.51 and 11,958.76

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Solution

The fourth proportional to 18,426.18, 25,413.51 and 11,958.76 is: 16,493.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,426.18 : 25,413.51 = 11,958.76 : x
  2. Step 2: Convert to fraction form
    18,426.18/25,413.51 = 11,958.76/x
  3. Step 3: Cross multiply
    18,426.18x = 25,413.51 × 11,958.76
  4. Step 4: Simplify right side
    18,426.18x = 303,913,939.78
  5. Step 5: Solve for x
    x = 303,913,939.78/18,426.18
  6. Step 6: Final answer
    x = 16,493.59

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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.