Home / 19,120.50-26,386.62-11,163.06

Finding the Fourth Proportional to 19,120.50, 26,386.62 and 11,163.06

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Solution

The fourth proportional to 19,120.50, 26,386.62 and 11,163.06 is: 15,405.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,120.50 : 26,386.62 = 11,163.06 : x
  2. Step 2: Convert to fraction form
    19,120.50/26,386.62 = 11,163.06/x
  3. Step 3: Cross multiply
    19,120.50x = 26,386.62 × 11,163.06
  4. Step 4: Simplify right side
    19,120.50x = 294,555,234.51
  5. Step 5: Solve for x
    x = 294,555,234.51/19,120.50
  6. Step 6: Final answer
    x = 15,405.21

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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.