Home / 15,413.01-21,270.38-9,125.39

Finding the Fourth Proportional to 15,413.01, 21,270.38 and 9,125.39

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Solution

The fourth proportional to 15,413.01, 21,270.38 and 9,125.39 is: 12,593.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,413.01 : 21,270.38 = 9,125.39 : x
  2. Step 2: Convert to fraction form
    15,413.01/21,270.38 = 9,125.39/x
  3. Step 3: Cross multiply
    15,413.01x = 21,270.38 × 9,125.39
  4. Step 4: Simplify right side
    15,413.01x = 194,100,360.97
  5. Step 5: Solve for x
    x = 194,100,360.97/15,413.01
  6. Step 6: Final answer
    x = 12,593.28

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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.