Home / 12,871.68-19,306.53-4,977.96

Finding the Fourth Proportional to 12,871.68, 19,306.53 and 4,977.96

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Solution

The fourth proportional to 12,871.68, 19,306.53 and 4,977.96 is: 7,466.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,871.68 : 19,306.53 = 4,977.96 : x
  2. Step 2: Convert to fraction form
    12,871.68/19,306.53 = 4,977.96/x
  3. Step 3: Cross multiply
    12,871.68x = 19,306.53 × 4,977.96
  4. Step 4: Simplify right side
    12,871.68x = 96,107,134.08
  5. Step 5: Solve for x
    x = 96,107,134.08/12,871.68
  6. Step 6: Final answer
    x = 7,466.56

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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.