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Finding the Fourth Proportional to 11,090.76, 15,284.12 and 7,941.48

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Solution

The fourth proportional to 11,090.76, 15,284.12 and 7,941.48 is: 10,944.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,090.76 : 15,284.12 = 7,941.48 : x
  2. Step 2: Convert to fraction form
    11,090.76/15,284.12 = 7,941.48/x
  3. Step 3: Cross multiply
    11,090.76x = 15,284.12 × 7,941.48
  4. Step 4: Simplify right side
    11,090.76x = 121,378,533.30
  5. Step 5: Solve for x
    x = 121,378,533.30/11,090.76
  6. Step 6: Final answer
    x = 10,944.11

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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.