Home / 11,885.82-16,403.36-6,581.13

Finding the Fourth Proportional to 11,885.82, 16,403.36 and 6,581.13

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Solution

The fourth proportional to 11,885.82, 16,403.36 and 6,581.13 is: 9,082.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,885.82 : 16,403.36 = 6,581.13 : x
  2. Step 2: Convert to fraction form
    11,885.82/16,403.36 = 6,581.13/x
  3. Step 3: Cross multiply
    11,885.82x = 16,403.36 × 6,581.13
  4. Step 4: Simplify right side
    11,885.82x = 107,952,611.69
  5. Step 5: Solve for x
    x = 107,952,611.69/11,885.82
  6. Step 6: Final answer
    x = 9,082.47

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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.