Home / 11,399.40-17,100.99-4,379.13

Finding the Fourth Proportional to 11,399.40, 17,100.99 and 4,379.13

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Solution

The fourth proportional to 11,399.40, 17,100.99 and 4,379.13 is: 6,569.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,399.40 : 17,100.99 = 4,379.13 : x
  2. Step 2: Convert to fraction form
    11,399.40/17,100.99 = 4,379.13/x
  3. Step 3: Cross multiply
    11,399.40x = 17,100.99 × 4,379.13
  4. Step 4: Simplify right side
    11,399.40x = 74,887,458.34
  5. Step 5: Solve for x
    x = 74,887,458.34/11,399.40
  6. Step 6: Final answer
    x = 6,569.42

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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.