Home / 11,975.64-17,951.18-5,406.44

Finding the Fourth Proportional to 11,975.64, 17,951.18 and 5,406.44

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Solution

The fourth proportional to 11,975.64, 17,951.18 and 5,406.44 is: 8,104.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,975.64 : 17,951.18 = 5,406.44 : x
  2. Step 2: Convert to fraction form
    11,975.64/17,951.18 = 5,406.44/x
  3. Step 3: Cross multiply
    11,975.64x = 17,951.18 × 5,406.44
  4. Step 4: Simplify right side
    11,975.64x = 97,051,977.60
  5. Step 5: Solve for x
    x = 97,051,977.60/11,975.64
  6. Step 6: Final answer
    x = 8,104.12

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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.