Home / 8,436.38-12,658.23-3,245.90

Finding the Fourth Proportional to 8,436.38, 12,658.23 and 3,245.90

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Solution

The fourth proportional to 8,436.38, 12,658.23 and 3,245.90 is: 4,870.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,436.38 : 12,658.23 = 3,245.90 : x
  2. Step 2: Convert to fraction form
    8,436.38/12,658.23 = 3,245.90/x
  3. Step 3: Cross multiply
    8,436.38x = 12,658.23 × 3,245.90
  4. Step 4: Simplify right side
    8,436.38x = 41,087,285.47
  5. Step 5: Solve for x
    x = 41,087,285.47/8,436.38
  6. Step 6: Final answer
    x = 4,870.25

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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.