Home / 12,871.00-19,306.50-4,105.69

Finding the Fourth Proportional to 12,871.00, 19,306.50 and 4,105.69

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Solution

The fourth proportional to 12,871.00, 19,306.50 and 4,105.69 is: 6,158.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,871.00 : 19,306.50 = 4,105.69 : x
  2. Step 2: Convert to fraction form
    12,871.00/19,306.50 = 4,105.69/x
  3. Step 3: Cross multiply
    12,871.00x = 19,306.50 × 4,105.69
  4. Step 4: Simplify right side
    12,871.00x = 79,266,463.42
  5. Step 5: Solve for x
    x = 79,266,463.42/12,871.00
  6. Step 6: Final answer
    x = 6,158.53

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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.