Home / 11,619.64-17,423.99-4,218.87

Finding the Fourth Proportional to 11,619.64, 17,423.99 and 4,218.87

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Solution

The fourth proportional to 11,619.64, 17,423.99 and 4,218.87 is: 6,326.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,619.64 : 17,423.99 = 4,218.87 : x
  2. Step 2: Convert to fraction form
    11,619.64/17,423.99 = 4,218.87/x
  3. Step 3: Cross multiply
    11,619.64x = 17,423.99 × 4,218.87
  4. Step 4: Simplify right side
    11,619.64x = 73,509,548.69
  5. Step 5: Solve for x
    x = 73,509,548.69/11,619.64
  6. Step 6: Final answer
    x = 6,326.32

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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.