Home / 21,166.16-29,209.67-11,605.86

Finding the Fourth Proportional to 21,166.16, 29,209.67 and 11,605.86

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Solution

The fourth proportional to 21,166.16, 29,209.67 and 11,605.86 is: 16,016.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,166.16 : 29,209.67 = 11,605.86 : x
  2. Step 2: Convert to fraction form
    21,166.16/29,209.67 = 11,605.86/x
  3. Step 3: Cross multiply
    21,166.16x = 29,209.67 × 11,605.86
  4. Step 4: Simplify right side
    21,166.16x = 339,003,369.68
  5. Step 5: Solve for x
    x = 339,003,369.68/21,166.16
  6. Step 6: Final answer
    x = 16,016.29

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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.