Home / 12,871.37-19,309.76-4,438.63

Finding the Fourth Proportional to 12,871.37, 19,309.76 and 4,438.63

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Solution

The fourth proportional to 12,871.37, 19,309.76 and 4,438.63 is: 6,658.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,871.37 : 19,309.76 = 4,438.63 : x
  2. Step 2: Convert to fraction form
    12,871.37/19,309.76 = 4,438.63/x
  3. Step 3: Cross multiply
    12,871.37x = 19,309.76 × 4,438.63
  4. Step 4: Simplify right side
    12,871.37x = 85,708,898.62
  5. Step 5: Solve for x
    x = 85,708,898.62/12,871.37
  6. Step 6: Final answer
    x = 6,658.88

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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.