Home / 14,623.20-20,178.72-8,654.85

Finding the Fourth Proportional to 14,623.20, 20,178.72 and 8,654.85

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Solution

The fourth proportional to 14,623.20, 20,178.72 and 8,654.85 is: 11,942.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,623.20 : 20,178.72 = 8,654.85 : x
  2. Step 2: Convert to fraction form
    14,623.20/20,178.72 = 8,654.85/x
  3. Step 3: Cross multiply
    14,623.20x = 20,178.72 × 8,654.85
  4. Step 4: Simplify right side
    14,623.20x = 174,643,794.79
  5. Step 5: Solve for x
    x = 174,643,794.79/14,623.20
  6. Step 6: Final answer
    x = 11,942.93

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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.