Home / 12,476.89-17,217.66-6,887.89

Finding the Fourth Proportional to 12,476.89, 17,217.66 and 6,887.89

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Solution

The fourth proportional to 12,476.89, 17,217.66 and 6,887.89 is: 9,505.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,476.89 : 17,217.66 = 6,887.89 : x
  2. Step 2: Convert to fraction form
    12,476.89/17,217.66 = 6,887.89/x
  3. Step 3: Cross multiply
    12,476.89x = 17,217.66 × 6,887.89
  4. Step 4: Simplify right side
    12,476.89x = 118,593,348.14
  5. Step 5: Solve for x
    x = 118,593,348.14/12,476.89
  6. Step 6: Final answer
    x = 9,505.04

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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.