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Finding the Fourth Proportional to 8,352.70, 12,529.03 and 3,422.34

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Solution

The fourth proportional to 8,352.70, 12,529.03 and 3,422.34 is: 5,133.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,352.70 : 12,529.03 = 3,422.34 : x
  2. Step 2: Convert to fraction form
    8,352.70/12,529.03 = 3,422.34/x
  3. Step 3: Cross multiply
    8,352.70x = 12,529.03 × 3,422.34
  4. Step 4: Simplify right side
    8,352.70x = 42,878,583.42
  5. Step 5: Solve for x
    x = 42,878,583.42/8,352.70
  6. Step 6: Final answer
    x = 5,133.50

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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.