Home / 19,902.09-29,814.86-11,143.16

Finding the Fourth Proportional to 19,902.09, 29,814.86 and 11,143.16

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Solution

The fourth proportional to 19,902.09, 29,814.86 and 11,143.16 is: 16,693.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,902.09 : 29,814.86 = 11,143.16 : x
  2. Step 2: Convert to fraction form
    19,902.09/29,814.86 = 11,143.16/x
  3. Step 3: Cross multiply
    19,902.09x = 29,814.86 × 11,143.16
  4. Step 4: Simplify right side
    19,902.09x = 332,231,755.36
  5. Step 5: Solve for x
    x = 332,231,755.36/19,902.09
  6. Step 6: Final answer
    x = 16,693.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.