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Finding the Fourth Proportional to 12,693.25, 19,040.79 and 3,927.04

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Solution

The fourth proportional to 12,693.25, 19,040.79 and 3,927.04 is: 5,890.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,693.25 : 19,040.79 = 3,927.04 : x
  2. Step 2: Convert to fraction form
    12,693.25/19,040.79 = 3,927.04/x
  3. Step 3: Cross multiply
    12,693.25x = 19,040.79 × 3,927.04
  4. Step 4: Simplify right side
    12,693.25x = 74,773,943.96
  5. Step 5: Solve for x
    x = 74,773,943.96/12,693.25
  6. Step 6: Final answer
    x = 5,890.84

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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.