Home / 11,621.60-17,422.64-8,101.26

Finding the Fourth Proportional to 11,621.60, 17,422.64 and 8,101.26

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Solution

The fourth proportional to 11,621.60, 17,422.64 and 8,101.26 is: 12,145.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,621.60 : 17,422.64 = 8,101.26 : x
  2. Step 2: Convert to fraction form
    11,621.60/17,422.64 = 8,101.26/x
  3. Step 3: Cross multiply
    11,621.60x = 17,422.64 × 8,101.26
  4. Step 4: Simplify right side
    11,621.60x = 141,145,336.53
  5. Step 5: Solve for x
    x = 141,145,336.53/11,621.60
  6. Step 6: Final answer
    x = 12,145.09

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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.