Home / 13,441.44-20,162.52-5,120.40

Finding the Fourth Proportional to 13,441.44, 20,162.52 and 5,120.40

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Solution

The fourth proportional to 13,441.44, 20,162.52 and 5,120.40 is: 7,680.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,441.44 : 20,162.52 = 5,120.40 : x
  2. Step 2: Convert to fraction form
    13,441.44/20,162.52 = 5,120.40/x
  3. Step 3: Cross multiply
    13,441.44x = 20,162.52 × 5,120.40
  4. Step 4: Simplify right side
    13,441.44x = 103,240,167.41
  5. Step 5: Solve for x
    x = 103,240,167.41/13,441.44
  6. Step 6: Final answer
    x = 7,680.74

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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.