Home / 11,931.99-16,466.40-6,896.36

Finding the Fourth Proportional to 11,931.99, 16,466.40 and 6,896.36

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Solution

The fourth proportional to 11,931.99, 16,466.40 and 6,896.36 is: 9,517.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,931.99 : 16,466.40 = 6,896.36 : x
  2. Step 2: Convert to fraction form
    11,931.99/16,466.40 = 6,896.36/x
  3. Step 3: Cross multiply
    11,931.99x = 16,466.40 × 6,896.36
  4. Step 4: Simplify right side
    11,931.99x = 113,558,139.97
  5. Step 5: Solve for x
    x = 113,558,139.97/11,931.99
  6. Step 6: Final answer
    x = 9,517.12

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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.