Home / 18,413.36-25,402.72-11,335.68

Finding the Fourth Proportional to 18,413.36, 25,402.72 and 11,335.68

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Solution

The fourth proportional to 18,413.36, 25,402.72 and 11,335.68 is: 15,638.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,413.36 : 25,402.72 = 11,335.68 : x
  2. Step 2: Convert to fraction form
    18,413.36/25,402.72 = 11,335.68/x
  3. Step 3: Cross multiply
    18,413.36x = 25,402.72 × 11,335.68
  4. Step 4: Simplify right side
    18,413.36x = 287,957,105.05
  5. Step 5: Solve for x
    x = 287,957,105.05/18,413.36
  6. Step 6: Final answer
    x = 15,638.49

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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.