Home / 19,115.26-26,378.67-10,731.76

Finding the Fourth Proportional to 19,115.26, 26,378.67 and 10,731.76

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Solution

The fourth proportional to 19,115.26, 26,378.67 and 10,731.76 is: 14,809.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,115.26 : 26,378.67 = 10,731.76 : x
  2. Step 2: Convert to fraction form
    19,115.26/26,378.67 = 10,731.76/x
  3. Step 3: Cross multiply
    19,115.26x = 26,378.67 × 10,731.76
  4. Step 4: Simplify right side
    19,115.26x = 283,089,555.56
  5. Step 5: Solve for x
    x = 283,089,555.56/19,115.26
  6. Step 6: Final answer
    x = 14,809.61

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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.