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Finding the Fourth Proportional to 8,864.37, 13,279.95 and 7,951.50

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Solution

The fourth proportional to 8,864.37, 13,279.95 and 7,951.50 is: 11,912.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,864.37 : 13,279.95 = 7,951.50 : x
  2. Step 2: Convert to fraction form
    8,864.37/13,279.95 = 7,951.50/x
  3. Step 3: Cross multiply
    8,864.37x = 13,279.95 × 7,951.50
  4. Step 4: Simplify right side
    8,864.37x = 105,595,522.43
  5. Step 5: Solve for x
    x = 105,595,522.43/8,864.37
  6. Step 6: Final answer
    x = 11,912.36

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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.