Home / 12,215.96-16,858.08-6,910.66

Finding the Fourth Proportional to 12,215.96, 16,858.08 and 6,910.66

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Solution

The fourth proportional to 12,215.96, 16,858.08 and 6,910.66 is: 9,536.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,215.96 : 16,858.08 = 6,910.66 : x
  2. Step 2: Convert to fraction form
    12,215.96/16,858.08 = 6,910.66/x
  3. Step 3: Cross multiply
    12,215.96x = 16,858.08 × 6,910.66
  4. Step 4: Simplify right side
    12,215.96x = 116,500,459.13
  5. Step 5: Solve for x
    x = 116,500,459.13/12,215.96
  6. Step 6: Final answer
    x = 9,536.74

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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.