Home / 12,729.92-19,097.40-3,964.46

Finding the Fourth Proportional to 12,729.92, 19,097.40 and 3,964.46

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Solution

The fourth proportional to 12,729.92, 19,097.40 and 3,964.46 is: 5,947.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,729.92 : 19,097.40 = 3,964.46 : x
  2. Step 2: Convert to fraction form
    12,729.92/19,097.40 = 3,964.46/x
  3. Step 3: Cross multiply
    12,729.92x = 19,097.40 × 3,964.46
  4. Step 4: Simplify right side
    12,729.92x = 75,710,878.40
  5. Step 5: Solve for x
    x = 75,710,878.40/12,729.92
  6. Step 6: Final answer
    x = 5,947.47

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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.