Home / 12,156.38-18,234.58-6,300.70

Finding the Fourth Proportional to 12,156.38, 18,234.58 and 6,300.70

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Solution

The fourth proportional to 12,156.38, 18,234.58 and 6,300.70 is: 9,451.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,156.38 : 18,234.58 = 6,300.70 : x
  2. Step 2: Convert to fraction form
    12,156.38/18,234.58 = 6,300.70/x
  3. Step 3: Cross multiply
    12,156.38x = 18,234.58 × 6,300.70
  4. Step 4: Simplify right side
    12,156.38x = 114,890,618.21
  5. Step 5: Solve for x
    x = 114,890,618.21/12,156.38
  6. Step 6: Final answer
    x = 9,451.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.