Home / 11,919.99-16,451.97-6,885.03

Finding the Fourth Proportional to 11,919.99, 16,451.97 and 6,885.03

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Solution

The fourth proportional to 11,919.99, 16,451.97 and 6,885.03 is: 9,502.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,919.99 : 16,451.97 = 6,885.03 : x
  2. Step 2: Convert to fraction form
    11,919.99/16,451.97 = 6,885.03/x
  3. Step 3: Cross multiply
    11,919.99x = 16,451.97 × 6,885.03
  4. Step 4: Simplify right side
    11,919.99x = 113,272,307.01
  5. Step 5: Solve for x
    x = 113,272,307.01/11,919.99
  6. Step 6: Final answer
    x = 9,502.72

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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.