Home / 12,455.37-17,189.01-7,150.07

Finding the Fourth Proportional to 12,455.37, 17,189.01 and 7,150.07

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Solution

The fourth proportional to 12,455.37, 17,189.01 and 7,150.07 is: 9,867.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455.37 : 17,189.01 = 7,150.07 : x
  2. Step 2: Convert to fraction form
    12,455.37/17,189.01 = 7,150.07/x
  3. Step 3: Cross multiply
    12,455.37x = 17,189.01 × 7,150.07
  4. Step 4: Simplify right side
    12,455.37x = 122,902,667.70
  5. Step 5: Solve for x
    x = 122,902,667.70/12,455.37
  6. Step 6: Final answer
    x = 9,867.44

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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.