Home / 21,162.33-29,204.34-11,603.09

Finding the Fourth Proportional to 21,162.33, 29,204.34 and 11,603.09

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Solution

The fourth proportional to 21,162.33, 29,204.34 and 11,603.09 is: 16,012.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,162.33 : 29,204.34 = 11,603.09 : x
  2. Step 2: Convert to fraction form
    21,162.33/29,204.34 = 11,603.09/x
  3. Step 3: Cross multiply
    21,162.33x = 29,204.34 × 11,603.09
  4. Step 4: Simplify right side
    21,162.33x = 338,860,541.41
  5. Step 5: Solve for x
    x = 338,860,541.41/21,162.33
  6. Step 6: Final answer
    x = 16,012.44

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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.