Home / 13,126.25-18,114.23-8,413.27

Finding the Fourth Proportional to 13,126.25, 18,114.23 and 8,413.27

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Solution

The fourth proportional to 13,126.25, 18,114.23 and 8,413.27 is: 11,610.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,126.25 : 18,114.23 = 8,413.27 : x
  2. Step 2: Convert to fraction form
    13,126.25/18,114.23 = 8,413.27/x
  3. Step 3: Cross multiply
    13,126.25x = 18,114.23 × 8,413.27
  4. Step 4: Simplify right side
    13,126.25x = 152,399,907.83
  5. Step 5: Solve for x
    x = 152,399,907.83/13,126.25
  6. Step 6: Final answer
    x = 11,610.32

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Half scale
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Double scale
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Similar ratio
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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.