Home / 11,621.10-17,428.16-3,301.80

Finding the Fourth Proportional to 11,621.10, 17,428.16 and 3,301.80

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Solution

The fourth proportional to 11,621.10, 17,428.16 and 3,301.80 is: 4,951.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,621.10 : 17,428.16 = 3,301.80 : x
  2. Step 2: Convert to fraction form
    11,621.10/17,428.16 = 3,301.80/x
  3. Step 3: Cross multiply
    11,621.10x = 17,428.16 × 3,301.80
  4. Step 4: Simplify right side
    11,621.10x = 57,544,241.59
  5. Step 5: Solve for x
    x = 57,544,241.59/11,621.10
  6. Step 6: Final answer
    x = 4,951.70

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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.