Home / 12,760.74-19,140.30-3,995.46

Finding the Fourth Proportional to 12,760.74, 19,140.30 and 3,995.46

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Solution

The fourth proportional to 12,760.74, 19,140.30 and 3,995.46 is: 5,992.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,760.74 : 19,140.30 = 3,995.46 : x
  2. Step 2: Convert to fraction form
    12,760.74/19,140.30 = 3,995.46/x
  3. Step 3: Cross multiply
    12,760.74x = 19,140.30 × 3,995.46
  4. Step 4: Simplify right side
    12,760.74x = 76,474,303.04
  5. Step 5: Solve for x
    x = 76,474,303.04/12,760.74
  6. Step 6: Final answer
    x = 5,992.94

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Double scale
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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.