Home / 8,412.66-12,623.85-3,222.18

Finding the Fourth Proportional to 8,412.66, 12,623.85 and 3,222.18

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Solution

The fourth proportional to 8,412.66, 12,623.85 and 3,222.18 is: 4,835.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,412.66 : 12,623.85 = 3,222.18 : x
  2. Step 2: Convert to fraction form
    8,412.66/12,623.85 = 3,222.18/x
  3. Step 3: Cross multiply
    8,412.66x = 12,623.85 × 3,222.18
  4. Step 4: Simplify right side
    8,412.66x = 40,676,316.99
  5. Step 5: Solve for x
    x = 40,676,316.99/8,412.66
  6. Step 6: Final answer
    x = 4,835.13

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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.