Home / 8,440.11-12,660.08-3,174.89

Finding the Fourth Proportional to 8,440.11, 12,660.08 and 3,174.89

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Solution

The fourth proportional to 8,440.11, 12,660.08 and 3,174.89 is: 4,762.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,440.11 : 12,660.08 = 3,174.89 : x
  2. Step 2: Convert to fraction form
    8,440.11/12,660.08 = 3,174.89/x
  3. Step 3: Cross multiply
    8,440.11x = 12,660.08 × 3,174.89
  4. Step 4: Simplify right side
    8,440.11x = 40,194,282.22
  5. Step 5: Solve for x
    x = 40,194,282.22/8,440.11
  6. Step 6: Final answer
    x = 4,762.29

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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.