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Finding the Fourth Proportional to 8,389.44, 12,573.72 and 7,346.94

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Solution

The fourth proportional to 8,389.44, 12,573.72 and 7,346.94 is: 11,011.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,389.44 : 12,573.72 = 7,346.94 : x
  2. Step 2: Convert to fraction form
    8,389.44/12,573.72 = 7,346.94/x
  3. Step 3: Cross multiply
    8,389.44x = 12,573.72 × 7,346.94
  4. Step 4: Simplify right side
    8,389.44x = 92,378,366.42
  5. Step 5: Solve for x
    x = 92,378,366.42/8,389.44
  6. Step 6: Final answer
    x = 11,011.27

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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.