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Finding the Fourth Proportional to 9,391.66, 14,089.65 and 2,817.98

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Solution

The fourth proportional to 9,391.66, 14,089.65 and 2,817.98 is: 4,227.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,391.66 : 14,089.65 = 2,817.98 : x
  2. Step 2: Convert to fraction form
    9,391.66/14,089.65 = 2,817.98/x
  3. Step 3: Cross multiply
    9,391.66x = 14,089.65 × 2,817.98
  4. Step 4: Simplify right side
    9,391.66x = 39,704,351.91
  5. Step 5: Solve for x
    x = 39,704,351.91/9,391.66
  6. Step 6: Final answer
    x = 4,227.62

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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.