Home / 12,215.25-16,858.40-6,910.02

Finding the Fourth Proportional to 12,215.25, 16,858.40 and 6,910.02

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Solution

The fourth proportional to 12,215.25, 16,858.40 and 6,910.02 is: 9,536.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,215.25 : 16,858.40 = 6,910.02 : x
  2. Step 2: Convert to fraction form
    12,215.25/16,858.40 = 6,910.02/x
  3. Step 3: Cross multiply
    12,215.25x = 16,858.40 × 6,910.02
  4. Step 4: Simplify right side
    12,215.25x = 116,491,846.62
  5. Step 5: Solve for x
    x = 116,491,846.62/12,215.25
  6. Step 6: Final answer
    x = 9,536.59

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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.