Home / 15,617.48-21,551.94-8,543.81

Finding the Fourth Proportional to 15,617.48, 21,551.94 and 8,543.81

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Solution

The fourth proportional to 15,617.48, 21,551.94 and 8,543.81 is: 11,790.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,617.48 : 21,551.94 = 8,543.81 : x
  2. Step 2: Convert to fraction form
    15,617.48/21,551.94 = 8,543.81/x
  3. Step 3: Cross multiply
    15,617.48x = 21,551.94 × 8,543.81
  4. Step 4: Simplify right side
    15,617.48x = 184,135,734.37
  5. Step 5: Solve for x
    x = 184,135,734.37/15,617.48
  6. Step 6: Final answer
    x = 11,790.37

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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.