Home / 14,786.63-20,406.38-8,499.41

Finding the Fourth Proportional to 14,786.63, 20,406.38 and 8,499.41

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Solution

The fourth proportional to 14,786.63, 20,406.38 and 8,499.41 is: 11,729.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,786.63 : 20,406.38 = 8,499.41 : x
  2. Step 2: Convert to fraction form
    14,786.63/20,406.38 = 8,499.41/x
  3. Step 3: Cross multiply
    14,786.63x = 20,406.38 × 8,499.41
  4. Step 4: Simplify right side
    14,786.63x = 173,442,045.71
  5. Step 5: Solve for x
    x = 173,442,045.71/14,786.63
  6. Step 6: Final answer
    x = 11,729.66

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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.