Home / 14,961.69-20,647.27-8,247.56

Finding the Fourth Proportional to 14,961.69, 20,647.27 and 8,247.56

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Solution

The fourth proportional to 14,961.69, 20,647.27 and 8,247.56 is: 11,381.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,961.69 : 20,647.27 = 8,247.56 : x
  2. Step 2: Convert to fraction form
    14,961.69/20,647.27 = 8,247.56/x
  3. Step 3: Cross multiply
    14,961.69x = 20,647.27 × 8,247.56
  4. Step 4: Simplify right side
    14,961.69x = 170,289,609.74
  5. Step 5: Solve for x
    x = 170,289,609.74/14,961.69
  6. Step 6: Final answer
    x = 11,381.71

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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.