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Finding the Fourth Proportional to 8,436.74, 12,653.03 and 3,501.65

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Solution

The fourth proportional to 8,436.74, 12,653.03 and 3,501.65 is: 5,251.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,436.74 : 12,653.03 = 3,501.65 : x
  2. Step 2: Convert to fraction form
    8,436.74/12,653.03 = 3,501.65/x
  3. Step 3: Cross multiply
    8,436.74x = 12,653.03 × 3,501.65
  4. Step 4: Simplify right side
    8,436.74x = 44,306,401.73
  5. Step 5: Solve for x
    x = 44,306,401.73/8,436.74
  6. Step 6: Final answer
    x = 5,251.61

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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.