Home / 12,427.39-17,149.77-6,838.39

Finding the Fourth Proportional to 12,427.39, 17,149.77 and 6,838.39

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Solution

The fourth proportional to 12,427.39, 17,149.77 and 6,838.39 is: 9,436.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,427.39 : 17,149.77 = 6,838.39 : x
  2. Step 2: Convert to fraction form
    12,427.39/17,149.77 = 6,838.39/x
  3. Step 3: Cross multiply
    12,427.39x = 17,149.77 × 6,838.39
  4. Step 4: Simplify right side
    12,427.39x = 117,276,815.67
  5. Step 5: Solve for x
    x = 117,276,815.67/12,427.39
  6. Step 6: Final answer
    x = 9,436.96

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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.