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Finding the Fourth Proportional to 14,093.40, 19,449.24 and 7,720.32

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Solution

The fourth proportional to 14,093.40, 19,449.24 and 7,720.32 is: 10,654.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,093.40 : 19,449.24 = 7,720.32 : x
  2. Step 2: Convert to fraction form
    14,093.40/19,449.24 = 7,720.32/x
  3. Step 3: Cross multiply
    14,093.40x = 19,449.24 × 7,720.32
  4. Step 4: Simplify right side
    14,093.40x = 150,154,356.56
  5. Step 5: Solve for x
    x = 150,154,356.56/14,093.40
  6. Step 6: Final answer
    x = 10,654.23

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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.