Home / 18,763.56-28,131.03-11,366.06

Finding the Fourth Proportional to 18,763.56, 28,131.03 and 11,366.06

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Solution

The fourth proportional to 18,763.56, 28,131.03 and 11,366.06 is: 17,040.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,763.56 : 28,131.03 = 11,366.06 : x
  2. Step 2: Convert to fraction form
    18,763.56/28,131.03 = 11,366.06/x
  3. Step 3: Cross multiply
    18,763.56x = 28,131.03 × 11,366.06
  4. Step 4: Simplify right side
    18,763.56x = 319,738,834.19
  5. Step 5: Solve for x
    x = 319,738,834.19/18,763.56
  6. Step 6: Final answer
    x = 17,040.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.