Home / 19,040.48-26,278.76-11,871.56

Finding the Fourth Proportional to 19,040.48, 26,278.76 and 11,871.56

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Solution

The fourth proportional to 19,040.48, 26,278.76 and 11,871.56 is: 16,384.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,040.48 : 26,278.76 = 11,871.56 : x
  2. Step 2: Convert to fraction form
    19,040.48/26,278.76 = 11,871.56/x
  3. Step 3: Cross multiply
    19,040.48x = 26,278.76 × 11,871.56
  4. Step 4: Simplify right side
    19,040.48x = 311,969,971.44
  5. Step 5: Solve for x
    x = 311,969,971.44/19,040.48
  6. Step 6: Final answer
    x = 16,384.57

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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.