Home / 11,919.98-16,449.84-6,614.72

Finding the Fourth Proportional to 11,919.98, 16,449.84 and 6,614.72

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Solution

The fourth proportional to 11,919.98, 16,449.84 and 6,614.72 is: 9,128.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,919.98 : 16,449.84 = 6,614.72 : x
  2. Step 2: Convert to fraction form
    11,919.98/16,449.84 = 6,614.72/x
  3. Step 3: Cross multiply
    11,919.98x = 16,449.84 × 6,614.72
  4. Step 4: Simplify right side
    11,919.98x = 108,811,085.64
  5. Step 5: Solve for x
    x = 108,811,085.64/11,919.98
  6. Step 6: Final answer
    x = 9,128.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.