Home / 14,620.81-20,175.50-8,651.44

Finding the Fourth Proportional to 14,620.81, 20,175.50 and 8,651.44

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Solution

The fourth proportional to 14,620.81, 20,175.50 and 8,651.44 is: 11,938.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,620.81 : 20,175.50 = 8,651.44 : x
  2. Step 2: Convert to fraction form
    14,620.81/20,175.50 = 8,651.44/x
  3. Step 3: Cross multiply
    14,620.81x = 20,175.50 × 8,651.44
  4. Step 4: Simplify right side
    14,620.81x = 174,546,983.59
  5. Step 5: Solve for x
    x = 174,546,983.59/14,620.81
  6. Step 6: Final answer
    x = 11,938.26

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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.