Home / 21,164.63-29,207.51-11,605.39

Finding the Fourth Proportional to 21,164.63, 29,207.51 and 11,605.39

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Solution

The fourth proportional to 21,164.63, 29,207.51 and 11,605.39 is: 16,015.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,164.63 : 29,207.51 = 11,605.39 : x
  2. Step 2: Convert to fraction form
    21,164.63/29,207.51 = 11,605.39/x
  3. Step 3: Cross multiply
    21,164.63x = 29,207.51 × 11,605.39
  4. Step 4: Simplify right side
    21,164.63x = 338,964,544.48
  5. Step 5: Solve for x
    x = 338,964,544.48/21,164.63
  6. Step 6: Final answer
    x = 16,015.61

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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.