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Finding the Fourth Proportional to 16,679.80, 23,018 and 10,713.75

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Solution

The fourth proportional to 16,679.80, 23,018 and 10,713.75 is: 14,784.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,679.80 : 23,018 = 10,713.75 : x
  2. Step 2: Convert to fraction form
    16,679.80/23,018 = 10,713.75/x
  3. Step 3: Cross multiply
    16,679.80x = 23,018 × 10,713.75
  4. Step 4: Simplify right side
    16,679.80x = 246,609,097.50
  5. Step 5: Solve for x
    x = 246,609,097.50/16,679.80
  6. Step 6: Final answer
    x = 14,784.90

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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.