Home / 12,630.84-18,944.76-3,871.80

Finding the Fourth Proportional to 12,630.84, 18,944.76 and 3,871.80

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Solution

The fourth proportional to 12,630.84, 18,944.76 and 3,871.80 is: 5,807.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,630.84 : 18,944.76 = 3,871.80 : x
  2. Step 2: Convert to fraction form
    12,630.84/18,944.76 = 3,871.80/x
  3. Step 3: Cross multiply
    12,630.84x = 18,944.76 × 3,871.80
  4. Step 4: Simplify right side
    12,630.84x = 73,350,321.77
  5. Step 5: Solve for x
    x = 73,350,321.77/12,630.84
  6. Step 6: Final answer
    x = 5,807.24

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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.