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Finding the Fourth Proportional to 18,599.78, 25,665.01 and 10,640.52

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Solution

The fourth proportional to 18,599.78, 25,665.01 and 10,640.52 is: 14,682.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,599.78 : 25,665.01 = 10,640.52 : x
  2. Step 2: Convert to fraction form
    18,599.78/25,665.01 = 10,640.52/x
  3. Step 3: Cross multiply
    18,599.78x = 25,665.01 × 10,640.52
  4. Step 4: Simplify right side
    18,599.78x = 273,089,025.60
  5. Step 5: Solve for x
    x = 273,089,025.60/18,599.78
  6. Step 6: Final answer
    x = 14,682.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.