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Finding the Fourth Proportional to 9,354.40, 13,999.20 and 8,576.80

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Solution

The fourth proportional to 9,354.40, 13,999.20 and 8,576.80 is: 12,835.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,354.40 : 13,999.20 = 8,576.80 : x
  2. Step 2: Convert to fraction form
    9,354.40/13,999.20 = 8,576.80/x
  3. Step 3: Cross multiply
    9,354.40x = 13,999.20 × 8,576.80
  4. Step 4: Simplify right side
    9,354.40x = 120,068,338.56
  5. Step 5: Solve for x
    x = 120,068,338.56/9,354.40
  6. Step 6: Final answer
    x = 12,835.49

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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.