Home / 14,786.91-20,406.12-8,822.02

Finding the Fourth Proportional to 14,786.91, 20,406.12 and 8,822.02

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Solution

The fourth proportional to 14,786.91, 20,406.12 and 8,822.02 is: 12,174.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,786.91 : 20,406.12 = 8,822.02 : x
  2. Step 2: Convert to fraction form
    14,786.91/20,406.12 = 8,822.02/x
  3. Step 3: Cross multiply
    14,786.91x = 20,406.12 × 8,822.02
  4. Step 4: Simplify right side
    14,786.91x = 180,023,198.76
  5. Step 5: Solve for x
    x = 180,023,198.76/14,786.91
  6. Step 6: Final answer
    x = 12,174.50

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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.