Home / 14,651.91-20,222.55-8,986.50

Finding the Fourth Proportional to 14,651.91, 20,222.55 and 8,986.50

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Solution

The fourth proportional to 14,651.91, 20,222.55 and 8,986.50 is: 12,403.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,651.91 : 20,222.55 = 8,986.50 : x
  2. Step 2: Convert to fraction form
    14,651.91/20,222.55 = 8,986.50/x
  3. Step 3: Cross multiply
    14,651.91x = 20,222.55 × 8,986.50
  4. Step 4: Simplify right side
    14,651.91x = 181,729,945.58
  5. Step 5: Solve for x
    x = 181,729,945.58/14,651.91
  6. Step 6: Final answer
    x = 12,403.16

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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.