Home / 12,995.81-19,494.93-4,228.37

Finding the Fourth Proportional to 12,995.81, 19,494.93 and 4,228.37

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Solution

The fourth proportional to 12,995.81, 19,494.93 and 4,228.37 is: 6,342.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,995.81 : 19,494.93 = 4,228.37 : x
  2. Step 2: Convert to fraction form
    12,995.81/19,494.93 = 4,228.37/x
  3. Step 3: Cross multiply
    12,995.81x = 19,494.93 × 4,228.37
  4. Step 4: Simplify right side
    12,995.81x = 82,431,777.16
  5. Step 5: Solve for x
    x = 82,431,777.16/12,995.81
  6. Step 6: Final answer
    x = 6,342.95

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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.