Home / 21,162.63-29,204.75-11,603.39

Finding the Fourth Proportional to 21,162.63, 29,204.75 and 11,603.39

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Solution

The fourth proportional to 21,162.63, 29,204.75 and 11,603.39 is: 16,012.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,162.63 : 29,204.75 = 11,603.39 : x
  2. Step 2: Convert to fraction form
    21,162.63/29,204.75 = 11,603.39/x
  3. Step 3: Cross multiply
    21,162.63x = 29,204.75 × 11,603.39
  4. Step 4: Simplify right side
    21,162.63x = 338,874,063.60
  5. Step 5: Solve for x
    x = 338,874,063.60/21,162.63
  6. Step 6: Final answer
    x = 16,012.85

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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.