Home / 19,072.68-26,321.58-11,007.78

Finding the Fourth Proportional to 19,072.68, 26,321.58 and 11,007.78

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Solution

The fourth proportional to 19,072.68, 26,321.58 and 11,007.78 is: 15,191.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,072.68 : 26,321.58 = 11,007.78 : x
  2. Step 2: Convert to fraction form
    19,072.68/26,321.58 = 11,007.78/x
  3. Step 3: Cross multiply
    19,072.68x = 26,321.58 × 11,007.78
  4. Step 4: Simplify right side
    19,072.68x = 289,742,161.89
  5. Step 5: Solve for x
    x = 289,742,161.89/19,072.68
  6. Step 6: Final answer
    x = 15,191.48

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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.