Home / 8,439.09-12,666.30-4,493.65

Finding the Fourth Proportional to 8,439.09, 12,666.30 and 4,493.65

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Solution

The fourth proportional to 8,439.09, 12,666.30 and 4,493.65 is: 6,744.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.09 : 12,666.30 = 4,493.65 : x
  2. Step 2: Convert to fraction form
    8,439.09/12,666.30 = 4,493.65/x
  3. Step 3: Cross multiply
    8,439.09x = 12,666.30 × 4,493.65
  4. Step 4: Simplify right side
    8,439.09x = 56,917,942.49
  5. Step 5: Solve for x
    x = 56,917,942.49/8,439.09
  6. Step 6: Final answer
    x = 6,744.56

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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.