Home / 12,935.94-19,370.94-8,539.98

Finding the Fourth Proportional to 12,935.94, 19,370.94 and 8,539.98

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Solution

The fourth proportional to 12,935.94, 19,370.94 and 8,539.98 is: 12,788.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,935.94 : 19,370.94 = 8,539.98 : x
  2. Step 2: Convert to fraction form
    12,935.94/19,370.94 = 8,539.98/x
  3. Step 3: Cross multiply
    12,935.94x = 19,370.94 × 8,539.98
  4. Step 4: Simplify right side
    12,935.94x = 165,427,440.18
  5. Step 5: Solve for x
    x = 165,427,440.18/12,935.94
  6. Step 6: Final answer
    x = 12,788.20

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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.