Home / 11,961.07-16,510.03-9,721.22

Finding the Fourth Proportional to 11,961.07, 16,510.03 and 9,721.22

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Solution

The fourth proportional to 11,961.07, 16,510.03 and 9,721.22 is: 13,418.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,961.07 : 16,510.03 = 9,721.22 : x
  2. Step 2: Convert to fraction form
    11,961.07/16,510.03 = 9,721.22/x
  3. Step 3: Cross multiply
    11,961.07x = 16,510.03 × 9,721.22
  4. Step 4: Simplify right side
    11,961.07x = 160,497,526.98
  5. Step 5: Solve for x
    x = 160,497,526.98/11,961.07
  6. Step 6: Final answer
    x = 13,418.33

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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.