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Finding the Fourth Proportional to 13,108.41, 18,089.46 and 7,803.32

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Solution

The fourth proportional to 13,108.41, 18,089.46 and 7,803.32 is: 10,768.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,108.41 : 18,089.46 = 7,803.32 : x
  2. Step 2: Convert to fraction form
    13,108.41/18,089.46 = 7,803.32/x
  3. Step 3: Cross multiply
    13,108.41x = 18,089.46 × 7,803.32
  4. Step 4: Simplify right side
    13,108.41x = 141,157,754.56
  5. Step 5: Solve for x
    x = 141,157,754.56/13,108.41
  6. Step 6: Final answer
    x = 10,768.49

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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.