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Finding the Fourth Proportional to 18,414.93, 25,412.78 and 10,457.33

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Solution

The fourth proportional to 18,414.93, 25,412.78 and 10,457.33 is: 14,431.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,414.93 : 25,412.78 = 10,457.33 : x
  2. Step 2: Convert to fraction form
    18,414.93/25,412.78 = 10,457.33/x
  3. Step 3: Cross multiply
    18,414.93x = 25,412.78 × 10,457.33
  4. Step 4: Simplify right side
    18,414.93x = 265,749,725.76
  5. Step 5: Solve for x
    x = 265,749,725.76/18,414.93
  6. Step 6: Final answer
    x = 14,431.21

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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.