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Finding the Fourth Proportional to 8,532.72, 12,799.16 and 8,351.28

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Solution

The fourth proportional to 8,532.72, 12,799.16 and 8,351.28 is: 12,527.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,532.72 : 12,799.16 = 8,351.28 : x
  2. Step 2: Convert to fraction form
    8,532.72/12,799.16 = 8,351.28/x
  3. Step 3: Cross multiply
    8,532.72x = 12,799.16 × 8,351.28
  4. Step 4: Simplify right side
    8,532.72x = 106,889,368.92
  5. Step 5: Solve for x
    x = 106,889,368.92/8,532.72
  6. Step 6: Final answer
    x = 12,527.00

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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.