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Finding the Fourth Proportional to 11,507.19, 17,260.78 and 4,929.11

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Solution

The fourth proportional to 11,507.19, 17,260.78 and 4,929.11 is: 7,393.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,507.19 : 17,260.78 = 4,929.11 : x
  2. Step 2: Convert to fraction form
    11,507.19/17,260.78 = 4,929.11/x
  3. Step 3: Cross multiply
    11,507.19x = 17,260.78 × 4,929.11
  4. Step 4: Simplify right side
    11,507.19x = 85,080,283.31
  5. Step 5: Solve for x
    x = 85,080,283.31/11,507.19
  6. Step 6: Final answer
    x = 7,393.66

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.