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Finding the Fourth Proportional to 8,376.52, 12,563.06 and 7,960.20

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Solution

The fourth proportional to 8,376.52, 12,563.06 and 7,960.20 is: 11,938.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,376.52 : 12,563.06 = 7,960.20 : x
  2. Step 2: Convert to fraction form
    8,376.52/12,563.06 = 7,960.20/x
  3. Step 3: Cross multiply
    8,376.52x = 12,563.06 × 7,960.20
  4. Step 4: Simplify right side
    8,376.52x = 100,004,470.21
  5. Step 5: Solve for x
    x = 100,004,470.21/8,376.52
  6. Step 6: Final answer
    x = 11,938.67

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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.