Home / 8,125.96-12,168.12-5,623.68

Finding the Fourth Proportional to 8,125.96, 12,168.12 and 5,623.68

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Solution

The fourth proportional to 8,125.96, 12,168.12 and 5,623.68 is: 8,421.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,125.96 : 12,168.12 = 5,623.68 : x
  2. Step 2: Convert to fraction form
    8,125.96/12,168.12 = 5,623.68/x
  3. Step 3: Cross multiply
    8,125.96x = 12,168.12 × 5,623.68
  4. Step 4: Simplify right side
    8,125.96x = 68,429,596.72
  5. Step 5: Solve for x
    x = 68,429,596.72/8,125.96
  6. Step 6: Final answer
    x = 8,421.11

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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.