Home / 11,448.06-15,799.32-6,412.19

Finding the Fourth Proportional to 11,448.06, 15,799.32 and 6,412.19

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Solution

The fourth proportional to 11,448.06, 15,799.32 and 6,412.19 is: 8,849.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,448.06 : 15,799.32 = 6,412.19 : x
  2. Step 2: Convert to fraction form
    11,448.06/15,799.32 = 6,412.19/x
  3. Step 3: Cross multiply
    11,448.06x = 15,799.32 × 6,412.19
  4. Step 4: Simplify right side
    11,448.06x = 101,308,241.71
  5. Step 5: Solve for x
    x = 101,308,241.71/11,448.06
  6. Step 6: Final answer
    x = 8,849.38

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Half scale
Find fourth proportional to 22,896.12, 31,598.64 and 12,824.38
Double scale
Find fourth proportional to 11,449.06, 15,800.70 and 6,413.19
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.