Home / 13,021.20-17,966.88-11,027.52

Finding the Fourth Proportional to 13,021.20, 17,966.88 and 11,027.52

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Solution

The fourth proportional to 13,021.20, 17,966.88 and 11,027.52 is: 15,215.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,021.20 : 17,966.88 = 11,027.52 : x
  2. Step 2: Convert to fraction form
    13,021.20/17,966.88 = 11,027.52/x
  3. Step 3: Cross multiply
    13,021.20x = 17,966.88 × 11,027.52
  4. Step 4: Simplify right side
    13,021.20x = 198,130,128.54
  5. Step 5: Solve for x
    x = 198,130,128.54/13,021.20
  6. Step 6: Final answer
    x = 15,215.97

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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.