Home / 12,960.39-19,436.48-4,193.25

Finding the Fourth Proportional to 12,960.39, 19,436.48 and 4,193.25

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Solution

The fourth proportional to 12,960.39, 19,436.48 and 4,193.25 is: 6,288.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,960.39 : 19,436.48 = 4,193.25 : x
  2. Step 2: Convert to fraction form
    12,960.39/19,436.48 = 4,193.25/x
  3. Step 3: Cross multiply
    12,960.39x = 19,436.48 × 4,193.25
  4. Step 4: Simplify right side
    12,960.39x = 81,501,998.79
  5. Step 5: Solve for x
    x = 81,501,998.79/12,960.39
  6. Step 6: Final answer
    x = 6,288.55

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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.