Home / 13,662.36-20,532.02-8,116.70

Finding the Fourth Proportional to 13,662.36, 20,532.02 and 8,116.70

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Solution

The fourth proportional to 13,662.36, 20,532.02 and 8,116.70 is: 12,197.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,662.36 : 20,532.02 = 8,116.70 : x
  2. Step 2: Convert to fraction form
    13,662.36/20,532.02 = 8,116.70/x
  3. Step 3: Cross multiply
    13,662.36x = 20,532.02 × 8,116.70
  4. Step 4: Simplify right side
    13,662.36x = 166,652,103.49
  5. Step 5: Solve for x
    x = 166,652,103.49/13,662.36
  6. Step 6: Final answer
    x = 12,197.90

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1.5x scale

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.