Home / 14,072.20-19,418.34-7,785.16

Finding the Fourth Proportional to 14,072.20, 19,418.34 and 7,785.16

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Solution

The fourth proportional to 14,072.20, 19,418.34 and 7,785.16 is: 10,742.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,072.20 : 19,418.34 = 7,785.16 : x
  2. Step 2: Convert to fraction form
    14,072.20/19,418.34 = 7,785.16/x
  3. Step 3: Cross multiply
    14,072.20x = 19,418.34 × 7,785.16
  4. Step 4: Simplify right side
    14,072.20x = 151,174,883.83
  5. Step 5: Solve for x
    x = 151,174,883.83/14,072.20
  6. Step 6: Final answer
    x = 10,742.80

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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.