Home / 12,776.21-19,167.05-3,891.93

Finding the Fourth Proportional to 12,776.21, 19,167.05 and 3,891.93

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Solution

The fourth proportional to 12,776.21, 19,167.05 and 3,891.93 is: 5,838.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,776.21 : 19,167.05 = 3,891.93 : x
  2. Step 2: Convert to fraction form
    12,776.21/19,167.05 = 3,891.93/x
  3. Step 3: Cross multiply
    12,776.21x = 19,167.05 × 3,891.93
  4. Step 4: Simplify right side
    12,776.21x = 74,596,826.64
  5. Step 5: Solve for x
    x = 74,596,826.64/12,776.21
  6. Step 6: Final answer
    x = 5,838.73

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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.