Home / 12,787.42-19,182.96-4,019.38

Finding the Fourth Proportional to 12,787.42, 19,182.96 and 4,019.38

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Solution

The fourth proportional to 12,787.42, 19,182.96 and 4,019.38 is: 6,029.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,787.42 : 19,182.96 = 4,019.38 : x
  2. Step 2: Convert to fraction form
    12,787.42/19,182.96 = 4,019.38/x
  3. Step 3: Cross multiply
    12,787.42x = 19,182.96 × 4,019.38
  4. Step 4: Simplify right side
    12,787.42x = 77,103,605.76
  5. Step 5: Solve for x
    x = 77,103,605.76/12,787.42
  6. Step 6: Final answer
    x = 6,029.65

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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.