Home / 13,895.15-19,181.41-8,865.92

Finding the Fourth Proportional to 13,895.15, 19,181.41 and 8,865.92

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Solution

The fourth proportional to 13,895.15, 19,181.41 and 8,865.92 is: 12,238.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,895.15 : 19,181.41 = 8,865.92 : x
  2. Step 2: Convert to fraction form
    13,895.15/19,181.41 = 8,865.92/x
  3. Step 3: Cross multiply
    13,895.15x = 19,181.41 × 8,865.92
  4. Step 4: Simplify right side
    13,895.15x = 170,060,872.34
  5. Step 5: Solve for x
    x = 170,060,872.34/13,895.15
  6. Step 6: Final answer
    x = 12,238.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.