Home / 18,413.90-25,409.21-12,362.91

Finding the Fourth Proportional to 18,413.90, 25,409.21 and 12,362.91

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Solution

The fourth proportional to 18,413.90, 25,409.21 and 12,362.91 is: 17,059.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,413.90 : 25,409.21 = 12,362.91 : x
  2. Step 2: Convert to fraction form
    18,413.90/25,409.21 = 12,362.91/x
  3. Step 3: Cross multiply
    18,413.90x = 25,409.21 × 12,362.91
  4. Step 4: Simplify right side
    18,413.90x = 314,131,714.59
  5. Step 5: Solve for x
    x = 314,131,714.59/18,413.90
  6. Step 6: Final answer
    x = 17,059.49

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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.