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Finding the Fourth Proportional to 13,249.68, 19,878.47 and 5,348.13

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Solution

The fourth proportional to 13,249.68, 19,878.47 and 5,348.13 is: 8,023.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,249.68 : 19,878.47 = 5,348.13 : x
  2. Step 2: Convert to fraction form
    13,249.68/19,878.47 = 5,348.13/x
  3. Step 3: Cross multiply
    13,249.68x = 19,878.47 × 5,348.13
  4. Step 4: Simplify right side
    13,249.68x = 106,312,615.02
  5. Step 5: Solve for x
    x = 106,312,615.02/13,249.68
  6. Step 6: Final answer
    x = 8,023.79

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.