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Finding the Fourth Proportional to 14,003.75, 21,005.61 and 9,607.88

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Solution

The fourth proportional to 14,003.75, 21,005.61 and 9,607.88 is: 14,411.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,003.75 : 21,005.61 = 9,607.88 : x
  2. Step 2: Convert to fraction form
    14,003.75/21,005.61 = 9,607.88/x
  3. Step 3: Cross multiply
    14,003.75x = 21,005.61 × 9,607.88
  4. Step 4: Simplify right side
    14,003.75x = 201,819,380.21
  5. Step 5: Solve for x
    x = 201,819,380.21/14,003.75
  6. Step 6: Final answer
    x = 14,411.81

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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.