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Finding the Fourth Proportional to 14,021.58, 20,983.01 and 8,759.07

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Solution

The fourth proportional to 14,021.58, 20,983.01 and 8,759.07 is: 13,107.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,021.58 : 20,983.01 = 8,759.07 : x
  2. Step 2: Convert to fraction form
    14,021.58/20,983.01 = 8,759.07/x
  3. Step 3: Cross multiply
    14,021.58x = 20,983.01 × 8,759.07
  4. Step 4: Simplify right side
    14,021.58x = 183,791,609.61
  5. Step 5: Solve for x
    x = 183,791,609.61/14,021.58
  6. Step 6: Final answer
    x = 13,107.76

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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.