Home / 12,817.35-19,191.29-6,648.39

Finding the Fourth Proportional to 12,817.35, 19,191.29 and 6,648.39

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Solution

The fourth proportional to 12,817.35, 19,191.29 and 6,648.39 is: 9,954.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,817.35 : 19,191.29 = 6,648.39 : x
  2. Step 2: Convert to fraction form
    12,817.35/19,191.29 = 6,648.39/x
  3. Step 3: Cross multiply
    12,817.35x = 19,191.29 × 6,648.39
  4. Step 4: Simplify right side
    12,817.35x = 127,591,147.28
  5. Step 5: Solve for x
    x = 127,591,147.28/12,817.35
  6. Step 6: Final answer
    x = 9,954.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.