Home / 8,156.10-12,234.62-2,312.25

Finding the Fourth Proportional to 8,156.10, 12,234.62 and 2,312.25

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Solution

The fourth proportional to 8,156.10, 12,234.62 and 2,312.25 is: 3,468.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,156.10 : 12,234.62 = 2,312.25 : x
  2. Step 2: Convert to fraction form
    8,156.10/12,234.62 = 2,312.25/x
  3. Step 3: Cross multiply
    8,156.10x = 12,234.62 × 2,312.25
  4. Step 4: Simplify right side
    8,156.10x = 28,289,488.53
  5. Step 5: Solve for x
    x = 28,289,488.53/8,156.10
  6. Step 6: Final answer
    x = 3,468.51

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Half scale
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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.