Home / 12,905.94-19,357.47-3,546.66

Finding the Fourth Proportional to 12,905.94, 19,357.47 and 3,546.66

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Solution

The fourth proportional to 12,905.94, 19,357.47 and 3,546.66 is: 5,319.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,905.94 : 19,357.47 = 3,546.66 : x
  2. Step 2: Convert to fraction form
    12,905.94/19,357.47 = 3,546.66/x
  3. Step 3: Cross multiply
    12,905.94x = 19,357.47 × 3,546.66
  4. Step 4: Simplify right side
    12,905.94x = 68,654,364.55
  5. Step 5: Solve for x
    x = 68,654,364.55/12,905.94
  6. Step 6: Final answer
    x = 5,319.59

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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.