Home / 19,485.89-26,892.29-11,105.09

Finding the Fourth Proportional to 19,485.89, 26,892.29 and 11,105.09

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Solution

The fourth proportional to 19,485.89, 26,892.29 and 11,105.09 is: 15,326.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,485.89 : 26,892.29 = 11,105.09 : x
  2. Step 2: Convert to fraction form
    19,485.89/26,892.29 = 11,105.09/x
  3. Step 3: Cross multiply
    19,485.89x = 26,892.29 × 11,105.09
  4. Step 4: Simplify right side
    19,485.89x = 298,641,300.76
  5. Step 5: Solve for x
    x = 298,641,300.76/19,485.89
  6. Step 6: Final answer
    x = 15,326.03

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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.