Home / 13,537.99-20,288.40-7,617.73

Finding the Fourth Proportional to 13,537.99, 20,288.40 and 7,617.73

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Solution

The fourth proportional to 13,537.99, 20,288.40 and 7,617.73 is: 11,416.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,537.99 : 20,288.40 = 7,617.73 : x
  2. Step 2: Convert to fraction form
    13,537.99/20,288.40 = 7,617.73/x
  3. Step 3: Cross multiply
    13,537.99x = 20,288.40 × 7,617.73
  4. Step 4: Simplify right side
    13,537.99x = 154,551,553.33
  5. Step 5: Solve for x
    x = 154,551,553.33/13,537.99
  6. Step 6: Final answer
    x = 11,416.14

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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.