Home / 12,931.44-19,402.92-6,774

Finding the Fourth Proportional to 12,931.44, 19,402.92 and 6,774

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Solution

The fourth proportional to 12,931.44, 19,402.92 and 6,774 is: 10,164.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,931.44 : 19,402.92 = 6,774 : x
  2. Step 2: Convert to fraction form
    12,931.44/19,402.92 = 6,774/x
  3. Step 3: Cross multiply
    12,931.44x = 19,402.92 × 6,774
  4. Step 4: Simplify right side
    12,931.44x = 131,435,380.08
  5. Step 5: Solve for x
    x = 131,435,380.08/12,931.44
  6. Step 6: Final answer
    x = 10,164.02

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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.