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Finding the Fourth Proportional to 11,153.95, 15,395.75 and 6,441.37

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Solution

The fourth proportional to 11,153.95, 15,395.75 and 6,441.37 is: 8,891.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,153.95 : 15,395.75 = 6,441.37 : x
  2. Step 2: Convert to fraction form
    11,153.95/15,395.75 = 6,441.37/x
  3. Step 3: Cross multiply
    11,153.95x = 15,395.75 × 6,441.37
  4. Step 4: Simplify right side
    11,153.95x = 99,169,722.18
  5. Step 5: Solve for x
    x = 99,169,722.18/11,153.95
  6. Step 6: Final answer
    x = 8,891.00

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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.