Home / 21,162.61-29,204.73-11,603.37

Finding the Fourth Proportional to 21,162.61, 29,204.73 and 11,603.37

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Solution

The fourth proportional to 21,162.61, 29,204.73 and 11,603.37 is: 16,012.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,162.61 : 29,204.73 = 11,603.37 : x
  2. Step 2: Convert to fraction form
    21,162.61/29,204.73 = 11,603.37/x
  3. Step 3: Cross multiply
    21,162.61x = 29,204.73 × 11,603.37
  4. Step 4: Simplify right side
    21,162.61x = 338,873,287.94
  5. Step 5: Solve for x
    x = 338,873,287.94/21,162.61
  6. Step 6: Final answer
    x = 16,012.83

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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.