Home / 16,811.90-23,201.76-9,259.60

Finding the Fourth Proportional to 16,811.90, 23,201.76 and 9,259.60

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Solution

The fourth proportional to 16,811.90, 23,201.76 and 9,259.60 is: 12,778.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,811.90 : 23,201.76 = 9,259.60 : x
  2. Step 2: Convert to fraction form
    16,811.90/23,201.76 = 9,259.60/x
  3. Step 3: Cross multiply
    16,811.90x = 23,201.76 × 9,259.60
  4. Step 4: Simplify right side
    16,811.90x = 214,839,016.90
  5. Step 5: Solve for x
    x = 214,839,016.90/16,811.90
  6. Step 6: Final answer
    x = 12,778.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.