Home / 13,632.40-20,443.80-4,867.60

Finding the Fourth Proportional to 13,632.40, 20,443.80 and 4,867.60

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Solution

The fourth proportional to 13,632.40, 20,443.80 and 4,867.60 is: 7,299.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,632.40 : 20,443.80 = 4,867.60 : x
  2. Step 2: Convert to fraction form
    13,632.40/20,443.80 = 4,867.60/x
  3. Step 3: Cross multiply
    13,632.40x = 20,443.80 × 4,867.60
  4. Step 4: Simplify right side
    13,632.40x = 99,512,240.88
  5. Step 5: Solve for x
    x = 99,512,240.88/13,632.40
  6. Step 6: Final answer
    x = 7,299.69

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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.