Home / 12,185.82-16,814.63-6,880.53

Finding the Fourth Proportional to 12,185.82, 16,814.63 and 6,880.53

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Solution

The fourth proportional to 12,185.82, 16,814.63 and 6,880.53 is: 9,494.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,185.82 : 16,814.63 = 6,880.53 : x
  2. Step 2: Convert to fraction form
    12,185.82/16,814.63 = 6,880.53/x
  3. Step 3: Cross multiply
    12,185.82x = 16,814.63 × 6,880.53
  4. Step 4: Simplify right side
    12,185.82x = 115,693,531.75
  5. Step 5: Solve for x
    x = 115,693,531.75/12,185.82
  6. Step 6: Final answer
    x = 9,494.11

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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.