Home / 13,424.45-20,128.96-5,532.41

Finding the Fourth Proportional to 13,424.45, 20,128.96 and 5,532.41

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Solution

The fourth proportional to 13,424.45, 20,128.96 and 5,532.41 is: 8,295.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,424.45 : 20,128.96 = 5,532.41 : x
  2. Step 2: Convert to fraction form
    13,424.45/20,128.96 = 5,532.41/x
  3. Step 3: Cross multiply
    13,424.45x = 20,128.96 × 5,532.41
  4. Step 4: Simplify right side
    13,424.45x = 111,361,685.71
  5. Step 5: Solve for x
    x = 111,361,685.71/13,424.45
  6. Step 6: Final answer
    x = 8,295.44

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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.