Home / 11,321.21-16,971.33-4,299.12

Finding the Fourth Proportional to 11,321.21, 16,971.33 and 4,299.12

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Solution

The fourth proportional to 11,321.21, 16,971.33 and 4,299.12 is: 6,444.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,321.21 : 16,971.33 = 4,299.12 : x
  2. Step 2: Convert to fraction form
    11,321.21/16,971.33 = 4,299.12/x
  3. Step 3: Cross multiply
    11,321.21x = 16,971.33 × 4,299.12
  4. Step 4: Simplify right side
    11,321.21x = 72,961,784.23
  5. Step 5: Solve for x
    x = 72,961,784.23/11,321.21
  6. Step 6: Final answer
    x = 6,444.70

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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.