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Finding the Fourth Proportional to 14,670.72, 21,972.18 and 8,814.42

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Solution

The fourth proportional to 14,670.72, 21,972.18 and 8,814.42 is: 13,201.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,670.72 : 21,972.18 = 8,814.42 : x
  2. Step 2: Convert to fraction form
    14,670.72/21,972.18 = 8,814.42/x
  3. Step 3: Cross multiply
    14,670.72x = 21,972.18 × 8,814.42
  4. Step 4: Simplify right side
    14,670.72x = 193,672,022.84
  5. Step 5: Solve for x
    x = 193,672,022.84/14,670.72
  6. Step 6: Final answer
    x = 13,201.26

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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.