Home / 15,413.91-23,121.89-5,417.45

Finding the Fourth Proportional to 15,413.91, 23,121.89 and 5,417.45

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Solution

The fourth proportional to 15,413.91, 23,121.89 and 5,417.45 is: 8,126.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,413.91 : 23,121.89 = 5,417.45 : x
  2. Step 2: Convert to fraction form
    15,413.91/23,121.89 = 5,417.45/x
  3. Step 3: Cross multiply
    15,413.91x = 23,121.89 × 5,417.45
  4. Step 4: Simplify right side
    15,413.91x = 125,261,647.31
  5. Step 5: Solve for x
    x = 125,261,647.31/15,413.91
  6. Step 6: Final answer
    x = 8,126.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.