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Finding the Fourth Proportional to 9,182.52, 12,576.90 and 8,643.94

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Solution

The fourth proportional to 9,182.52, 12,576.90 and 8,643.94 is: 11,839.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,182.52 : 12,576.90 = 8,643.94 : x
  2. Step 2: Convert to fraction form
    9,182.52/12,576.90 = 8,643.94/x
  3. Step 3: Cross multiply
    9,182.52x = 12,576.90 × 8,643.94
  4. Step 4: Simplify right side
    9,182.52x = 108,713,968.99
  5. Step 5: Solve for x
    x = 108,713,968.99/9,182.52
  6. Step 6: Final answer
    x = 11,839.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.