Home / 11,218.29-15,477.51-7,242.06

Finding the Fourth Proportional to 11,218.29, 15,477.51 and 7,242.06

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Solution

The fourth proportional to 11,218.29, 15,477.51 and 7,242.06 is: 9,991.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,218.29 : 15,477.51 = 7,242.06 : x
  2. Step 2: Convert to fraction form
    11,218.29/15,477.51 = 7,242.06/x
  3. Step 3: Cross multiply
    11,218.29x = 15,477.51 × 7,242.06
  4. Step 4: Simplify right side
    11,218.29x = 112,089,056.07
  5. Step 5: Solve for x
    x = 112,089,056.07/11,218.29
  6. Step 6: Final answer
    x = 9,991.63

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.