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Finding the Fourth Proportional to 11,090.76, 15,302.28 and 6,612.48

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Solution

The fourth proportional to 11,090.76, 15,302.28 and 6,612.48 is: 9,123.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,090.76 : 15,302.28 = 6,612.48 : x
  2. Step 2: Convert to fraction form
    11,090.76/15,302.28 = 6,612.48/x
  3. Step 3: Cross multiply
    11,090.76x = 15,302.28 × 6,612.48
  4. Step 4: Simplify right side
    11,090.76x = 101,186,020.45
  5. Step 5: Solve for x
    x = 101,186,020.45/11,090.76
  6. Step 6: Final answer
    x = 9,123.45

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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.