Home / 13,422.44-20,134.68-3,561.52

Finding the Fourth Proportional to 13,422.44, 20,134.68 and 3,561.52

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Solution

The fourth proportional to 13,422.44, 20,134.68 and 3,561.52 is: 5,342.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,422.44 : 20,134.68 = 3,561.52 : x
  2. Step 2: Convert to fraction form
    13,422.44/20,134.68 = 3,561.52/x
  3. Step 3: Cross multiply
    13,422.44x = 20,134.68 × 3,561.52
  4. Step 4: Simplify right side
    13,422.44x = 71,710,065.51
  5. Step 5: Solve for x
    x = 71,710,065.51/13,422.44
  6. Step 6: Final answer
    x = 5,342.55

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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.