Home / 17,989.80-26,973.02-8,629.60

Finding the Fourth Proportional to 17,989.80, 26,973.02 and 8,629.60

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Solution

The fourth proportional to 17,989.80, 26,973.02 and 8,629.60 is: 12,938.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,989.80 : 26,973.02 = 8,629.60 : x
  2. Step 2: Convert to fraction form
    17,989.80/26,973.02 = 8,629.60/x
  3. Step 3: Cross multiply
    17,989.80x = 26,973.02 × 8,629.60
  4. Step 4: Simplify right side
    17,989.80x = 232,766,373.39
  5. Step 5: Solve for x
    x = 232,766,373.39/17,989.80
  6. Step 6: Final answer
    x = 12,938.80

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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.