Home / 18,976.98-26,189.73-11,021.70

Finding the Fourth Proportional to 18,976.98, 26,189.73 and 11,021.70

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Solution

The fourth proportional to 18,976.98, 26,189.73 and 11,021.70 is: 15,210.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,976.98 : 26,189.73 = 11,021.70 : x
  2. Step 2: Convert to fraction form
    18,976.98/26,189.73 = 11,021.70/x
  3. Step 3: Cross multiply
    18,976.98x = 26,189.73 × 11,021.70
  4. Step 4: Simplify right side
    18,976.98x = 288,655,347.14
  5. Step 5: Solve for x
    x = 288,655,347.14/18,976.98
  6. Step 6: Final answer
    x = 15,210.82

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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.