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Finding the Fourth Proportional to 14,082.08, 21,127.99 and 8,164.11

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Solution

The fourth proportional to 14,082.08, 21,127.99 and 8,164.11 is: 12,248.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,082.08 : 21,127.99 = 8,164.11 : x
  2. Step 2: Convert to fraction form
    14,082.08/21,127.99 = 8,164.11/x
  3. Step 3: Cross multiply
    14,082.08x = 21,127.99 × 8,164.11
  4. Step 4: Simplify right side
    14,082.08x = 172,491,189.72
  5. Step 5: Solve for x
    x = 172,491,189.72/14,082.08
  6. Step 6: Final answer
    x = 12,248.99

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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.