Home / 13,364.12-18,442.20-7,395.43

Finding the Fourth Proportional to 13,364.12, 18,442.20 and 7,395.43

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Solution

The fourth proportional to 13,364.12, 18,442.20 and 7,395.43 is: 10,205.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,364.12 : 18,442.20 = 7,395.43 : x
  2. Step 2: Convert to fraction form
    13,364.12/18,442.20 = 7,395.43/x
  3. Step 3: Cross multiply
    13,364.12x = 18,442.20 × 7,395.43
  4. Step 4: Simplify right side
    13,364.12x = 136,387,953.04
  5. Step 5: Solve for x
    x = 136,387,953.04/13,364.12
  6. Step 6: Final answer
    x = 10,205.54

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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.