Home / 13,237.99-18,268.74-7,270.09

Finding the Fourth Proportional to 13,237.99, 18,268.74 and 7,270.09

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Solution

The fourth proportional to 13,237.99, 18,268.74 and 7,270.09 is: 10,032.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,237.99 : 18,268.74 = 7,270.09 : x
  2. Step 2: Convert to fraction form
    13,237.99/18,268.74 = 7,270.09/x
  3. Step 3: Cross multiply
    13,237.99x = 18,268.74 × 7,270.09
  4. Step 4: Simplify right side
    13,237.99x = 132,815,383.99
  5. Step 5: Solve for x
    x = 132,815,383.99/13,237.99
  6. Step 6: Final answer
    x = 10,032.90

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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.