Home / 13,905.06-19,188.27-7,617.30

Finding the Fourth Proportional to 13,905.06, 19,188.27 and 7,617.30

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Solution

The fourth proportional to 13,905.06, 19,188.27 and 7,617.30 is: 10,511.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905.06 : 19,188.27 = 7,617.30 : x
  2. Step 2: Convert to fraction form
    13,905.06/19,188.27 = 7,617.30/x
  3. Step 3: Cross multiply
    13,905.06x = 19,188.27 × 7,617.30
  4. Step 4: Simplify right side
    13,905.06x = 146,162,809.07
  5. Step 5: Solve for x
    x = 146,162,809.07/13,905.06
  6. Step 6: Final answer
    x = 10,511.48

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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.