Home / 13,021.97-19,534.77-4,257.56

Finding the Fourth Proportional to 13,021.97, 19,534.77 and 4,257.56

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Solution

The fourth proportional to 13,021.97, 19,534.77 and 4,257.56 is: 6,386.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,021.97 : 19,534.77 = 4,257.56 : x
  2. Step 2: Convert to fraction form
    13,021.97/19,534.77 = 4,257.56/x
  3. Step 3: Cross multiply
    13,021.97x = 19,534.77 × 4,257.56
  4. Step 4: Simplify right side
    13,021.97x = 83,170,504.20
  5. Step 5: Solve for x
    x = 83,170,504.20/13,021.97
  6. Step 6: Final answer
    x = 6,386.94

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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.