Home / 13,798.22-20,698.02-3,938.96

Finding the Fourth Proportional to 13,798.22, 20,698.02 and 3,938.96

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Solution

The fourth proportional to 13,798.22, 20,698.02 and 3,938.96 is: 5,908.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,798.22 : 20,698.02 = 3,938.96 : x
  2. Step 2: Convert to fraction form
    13,798.22/20,698.02 = 3,938.96/x
  3. Step 3: Cross multiply
    13,798.22x = 20,698.02 × 3,938.96
  4. Step 4: Simplify right side
    13,798.22x = 81,528,672.86
  5. Step 5: Solve for x
    x = 81,528,672.86/13,798.22
  6. Step 6: Final answer
    x = 5,908.64

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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.