Home / 11,275.36-15,553.20-7,080.16

Finding the Fourth Proportional to 11,275.36, 15,553.20 and 7,080.16

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Solution

The fourth proportional to 11,275.36, 15,553.20 and 7,080.16 is: 9,766.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,275.36 : 15,553.20 = 7,080.16 : x
  2. Step 2: Convert to fraction form
    11,275.36/15,553.20 = 7,080.16/x
  3. Step 3: Cross multiply
    11,275.36x = 15,553.20 × 7,080.16
  4. Step 4: Simplify right side
    11,275.36x = 110,119,144.51
  5. Step 5: Solve for x
    x = 110,119,144.51/11,275.36
  6. Step 6: Final answer
    x = 9,766.35

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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.