Home / 15,413.93-23,009.37-13,545.60

Finding the Fourth Proportional to 15,413.93, 23,009.37 and 13,545.60

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Solution

The fourth proportional to 15,413.93, 23,009.37 and 13,545.60 is: 20,220.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,413.93 : 23,009.37 = 13,545.60 : x
  2. Step 2: Convert to fraction form
    15,413.93/23,009.37 = 13,545.60/x
  3. Step 3: Cross multiply
    15,413.93x = 23,009.37 × 13,545.60
  4. Step 4: Simplify right side
    15,413.93x = 311,675,722.27
  5. Step 5: Solve for x
    x = 311,675,722.27/15,413.93
  6. Step 6: Final answer
    x = 20,220.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.