Home / 11,974.88-16,516.91-10,378.71

Finding the Fourth Proportional to 11,974.88, 16,516.91 and 10,378.71

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Solution

The fourth proportional to 11,974.88, 16,516.91 and 10,378.71 is: 14,315.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,974.88 : 16,516.91 = 10,378.71 : x
  2. Step 2: Convert to fraction form
    11,974.88/16,516.91 = 10,378.71/x
  3. Step 3: Cross multiply
    11,974.88x = 16,516.91 × 10,378.71
  4. Step 4: Simplify right side
    11,974.88x = 171,424,244.93
  5. Step 5: Solve for x
    x = 171,424,244.93/11,974.88
  6. Step 6: Final answer
    x = 14,315.32

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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.