Home / 13,413.07-18,518.39-12,576.25

Finding the Fourth Proportional to 13,413.07, 18,518.39 and 12,576.25

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Solution

The fourth proportional to 13,413.07, 18,518.39 and 12,576.25 is: 17,363.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,413.07 : 18,518.39 = 12,576.25 : x
  2. Step 2: Convert to fraction form
    13,413.07/18,518.39 = 12,576.25/x
  3. Step 3: Cross multiply
    13,413.07x = 18,518.39 × 12,576.25
  4. Step 4: Simplify right side
    13,413.07x = 232,891,902.24
  5. Step 5: Solve for x
    x = 232,891,902.24/13,413.07
  6. Step 6: Final answer
    x = 17,363.06

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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.