Home / 13,838.52-20,760.48-4,480.86

Finding the Fourth Proportional to 13,838.52, 20,760.48 and 4,480.86

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Solution

The fourth proportional to 13,838.52, 20,760.48 and 4,480.86 is: 6,722.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,838.52 : 20,760.48 = 4,480.86 : x
  2. Step 2: Convert to fraction form
    13,838.52/20,760.48 = 4,480.86/x
  3. Step 3: Cross multiply
    13,838.52x = 20,760.48 × 4,480.86
  4. Step 4: Simplify right side
    13,838.52x = 93,024,804.41
  5. Step 5: Solve for x
    x = 93,024,804.41/13,838.52
  6. Step 6: Final answer
    x = 6,722.16

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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.