Home / 19,015.40-26,239.92-11,057.06

Finding the Fourth Proportional to 19,015.40, 26,239.92 and 11,057.06

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Solution

The fourth proportional to 19,015.40, 26,239.92 and 11,057.06 is: 15,257.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,015.40 : 26,239.92 = 11,057.06 : x
  2. Step 2: Convert to fraction form
    19,015.40/26,239.92 = 11,057.06/x
  3. Step 3: Cross multiply
    19,015.40x = 26,239.92 × 11,057.06
  4. Step 4: Simplify right side
    19,015.40x = 290,136,369.84
  5. Step 5: Solve for x
    x = 290,136,369.84/19,015.40
  6. Step 6: Final answer
    x = 15,257.97

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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.