Home / 14,401.08-19,872.30-8,115

Finding the Fourth Proportional to 14,401.08, 19,872.30 and 8,115

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Solution

The fourth proportional to 14,401.08, 19,872.30 and 8,115 is: 11,198.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,401.08 : 19,872.30 = 8,115 : x
  2. Step 2: Convert to fraction form
    14,401.08/19,872.30 = 8,115/x
  3. Step 3: Cross multiply
    14,401.08x = 19,872.30 × 8,115
  4. Step 4: Simplify right side
    14,401.08x = 161,263,714.50
  5. Step 5: Solve for x
    x = 161,263,714.50/14,401.08
  6. Step 6: Final answer
    x = 11,198.03

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1.5x scale

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.