Home / 13,662.46-18,731.30-13,413.39

Finding the Fourth Proportional to 13,662.46, 18,731.30 and 13,413.39

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Solution

The fourth proportional to 13,662.46, 18,731.30 and 13,413.39 is: 18,389.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,662.46 : 18,731.30 = 13,413.39 : x
  2. Step 2: Convert to fraction form
    13,662.46/18,731.30 = 13,413.39/x
  3. Step 3: Cross multiply
    13,662.46x = 18,731.30 × 13,413.39
  4. Step 4: Simplify right side
    13,662.46x = 251,250,232.11
  5. Step 5: Solve for x
    x = 251,250,232.11/13,662.46
  6. Step 6: Final answer
    x = 18,389.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.