Home / 12,685.14-19,005.84-9,874.98

Finding the Fourth Proportional to 12,685.14, 19,005.84 and 9,874.98

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Solution

The fourth proportional to 12,685.14, 19,005.84 and 9,874.98 is: 14,795.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,685.14 : 19,005.84 = 9,874.98 : x
  2. Step 2: Convert to fraction form
    12,685.14/19,005.84 = 9,874.98/x
  3. Step 3: Cross multiply
    12,685.14x = 19,005.84 × 9,874.98
  4. Step 4: Simplify right side
    12,685.14x = 187,682,289.88
  5. Step 5: Solve for x
    x = 187,682,289.88/12,685.14
  6. Step 6: Final answer
    x = 14,795.44

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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.