Home / 12,396.87-18,575.47-11,137.98

Finding the Fourth Proportional to 12,396.87, 18,575.47 and 11,137.98

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Solution

The fourth proportional to 12,396.87, 18,575.47 and 11,137.98 is: 16,689.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,396.87 : 18,575.47 = 11,137.98 : x
  2. Step 2: Convert to fraction form
    12,396.87/18,575.47 = 11,137.98/x
  3. Step 3: Cross multiply
    12,396.87x = 18,575.47 × 11,137.98
  4. Step 4: Simplify right side
    12,396.87x = 206,893,213.35
  5. Step 5: Solve for x
    x = 206,893,213.35/12,396.87
  6. Step 6: Final answer
    x = 16,689.15

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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.