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Finding the Fourth Proportional to 13,471.99, 18,590.51 and 7,504.11

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Solution

The fourth proportional to 13,471.99, 18,590.51 and 7,504.11 is: 10,355.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,471.99 : 18,590.51 = 7,504.11 : x
  2. Step 2: Convert to fraction form
    13,471.99/18,590.51 = 7,504.11/x
  3. Step 3: Cross multiply
    13,471.99x = 18,590.51 × 7,504.11
  4. Step 4: Simplify right side
    13,471.99x = 139,505,250.76
  5. Step 5: Solve for x
    x = 139,505,250.76/13,471.99
  6. Step 6: Final answer
    x = 10,355.21

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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.