Home / 13,005.09-19,507.64-3,144.29

Finding the Fourth Proportional to 13,005.09, 19,507.64 and 3,144.29

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Solution

The fourth proportional to 13,005.09, 19,507.64 and 3,144.29 is: 4,716.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,005.09 : 19,507.64 = 3,144.29 : x
  2. Step 2: Convert to fraction form
    13,005.09/19,507.64 = 3,144.29/x
  3. Step 3: Cross multiply
    13,005.09x = 19,507.64 × 3,144.29
  4. Step 4: Simplify right side
    13,005.09x = 61,337,564.12
  5. Step 5: Solve for x
    x = 61,337,564.12/13,005.09
  6. Step 6: Final answer
    x = 4,716.43

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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.