Home / 11,720.80-17,579.40-4,324.24

Finding the Fourth Proportional to 11,720.80, 17,579.40 and 4,324.24

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Solution

The fourth proportional to 11,720.80, 17,579.40 and 4,324.24 is: 6,485.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,720.80 : 17,579.40 = 4,324.24 : x
  2. Step 2: Convert to fraction form
    11,720.80/17,579.40 = 4,324.24/x
  3. Step 3: Cross multiply
    11,720.80x = 17,579.40 × 4,324.24
  4. Step 4: Simplify right side
    11,720.80x = 76,017,544.66
  5. Step 5: Solve for x
    x = 76,017,544.66/11,720.80
  6. Step 6: Final answer
    x = 6,485.70

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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.