Home / 8,139.39-11,232.36-4,413.39

Finding the Fourth Proportional to 8,139.39, 11,232.36 and 4,413.39

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Solution

The fourth proportional to 8,139.39, 11,232.36 and 4,413.39 is: 6,090.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,139.39 : 11,232.36 = 4,413.39 : x
  2. Step 2: Convert to fraction form
    8,139.39/11,232.36 = 4,413.39/x
  3. Step 3: Cross multiply
    8,139.39x = 11,232.36 × 4,413.39
  4. Step 4: Simplify right side
    8,139.39x = 49,572,785.30
  5. Step 5: Solve for x
    x = 49,572,785.30/8,139.39
  6. Step 6: Final answer
    x = 6,090.48

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Half scale
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Double scale
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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.