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Finding the Fourth Proportional to 18,300.64, 25,255.08 and 10,342.96

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Solution

The fourth proportional to 18,300.64, 25,255.08 and 10,342.96 is: 14,273.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,300.64 : 25,255.08 = 10,342.96 : x
  2. Step 2: Convert to fraction form
    18,300.64/25,255.08 = 10,342.96/x
  3. Step 3: Cross multiply
    18,300.64x = 25,255.08 × 10,342.96
  4. Step 4: Simplify right side
    18,300.64x = 261,212,282.24
  5. Step 5: Solve for x
    x = 261,212,282.24/18,300.64
  6. Step 6: Final answer
    x = 14,273.40

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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.