Home / 13,789.70-19,021.77-10,008.48

Finding the Fourth Proportional to 13,789.70, 19,021.77 and 10,008.48

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Solution

The fourth proportional to 13,789.70, 19,021.77 and 10,008.48 is: 13,805.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,789.70 : 19,021.77 = 10,008.48 : x
  2. Step 2: Convert to fraction form
    13,789.70/19,021.77 = 10,008.48/x
  3. Step 3: Cross multiply
    13,789.70x = 19,021.77 × 10,008.48
  4. Step 4: Simplify right side
    13,789.70x = 190,379,004.61
  5. Step 5: Solve for x
    x = 190,379,004.61/13,789.70
  6. Step 6: Final answer
    x = 13,805.88

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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.