Home / 12,282.24-18,438.75-9,847.38

Finding the Fourth Proportional to 12,282.24, 18,438.75 and 9,847.38

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Solution

The fourth proportional to 12,282.24, 18,438.75 and 9,847.38 is: 14,783.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,282.24 : 18,438.75 = 9,847.38 : x
  2. Step 2: Convert to fraction form
    12,282.24/18,438.75 = 9,847.38/x
  3. Step 3: Cross multiply
    12,282.24x = 18,438.75 × 9,847.38
  4. Step 4: Simplify right side
    12,282.24x = 181,573,377.98
  5. Step 5: Solve for x
    x = 181,573,377.98/12,282.24
  6. Step 6: Final answer
    x = 14,783.41

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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.