Home / 19,899.48-27,459.31-11,399.97

Finding the Fourth Proportional to 19,899.48, 27,459.31 and 11,399.97

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Solution

The fourth proportional to 19,899.48, 27,459.31 and 11,399.97 is: 15,730.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,899.48 : 27,459.31 = 11,399.97 : x
  2. Step 2: Convert to fraction form
    19,899.48/27,459.31 = 11,399.97/x
  3. Step 3: Cross multiply
    19,899.48x = 27,459.31 × 11,399.97
  4. Step 4: Simplify right side
    19,899.48x = 313,035,310.22
  5. Step 5: Solve for x
    x = 313,035,310.22/19,899.48
  6. Step 6: Final answer
    x = 15,730.83

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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.