Home / 13,020.12-17,997.99-11,617.68

Finding the Fourth Proportional to 13,020.12, 17,997.99 and 11,617.68

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Solution

The fourth proportional to 13,020.12, 17,997.99 and 11,617.68 is: 16,059.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,020.12 : 17,997.99 = 11,617.68 : x
  2. Step 2: Convert to fraction form
    13,020.12/17,997.99 = 11,617.68/x
  3. Step 3: Cross multiply
    13,020.12x = 17,997.99 × 11,617.68
  4. Step 4: Simplify right side
    13,020.12x = 209,094,888.46
  5. Step 5: Solve for x
    x = 209,094,888.46/13,020.12
  6. Step 6: Final answer
    x = 16,059.37

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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.