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Finding the Fourth Proportional to 17,285.54, 25,938.39 and 7,289.68

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Solution

The fourth proportional to 17,285.54, 25,938.39 and 7,289.68 is: 10,938.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,285.54 : 25,938.39 = 7,289.68 : x
  2. Step 2: Convert to fraction form
    17,285.54/25,938.39 = 7,289.68/x
  3. Step 3: Cross multiply
    17,285.54x = 25,938.39 × 7,289.68
  4. Step 4: Simplify right side
    17,285.54x = 189,082,562.82
  5. Step 5: Solve for x
    x = 189,082,562.82/17,285.54
  6. Step 6: Final answer
    x = 10,938.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.