Home / 19,578.98-27,006.70-11,615.57

Finding the Fourth Proportional to 19,578.98, 27,006.70 and 11,615.57

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Solution

The fourth proportional to 19,578.98, 27,006.70 and 11,615.57 is: 16,022.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,578.98 : 27,006.70 = 11,615.57 : x
  2. Step 2: Convert to fraction form
    19,578.98/27,006.70 = 11,615.57/x
  3. Step 3: Cross multiply
    19,578.98x = 27,006.70 × 11,615.57
  4. Step 4: Simplify right side
    19,578.98x = 313,698,021.21
  5. Step 5: Solve for x
    x = 313,698,021.21/19,578.98
  6. Step 6: Final answer
    x = 16,022.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.