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Finding the Fourth Proportional to 8,288.32, 12,404.56 and 6,904.32

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Solution

The fourth proportional to 8,288.32, 12,404.56 and 6,904.32 is: 10,333.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,288.32 : 12,404.56 = 6,904.32 : x
  2. Step 2: Convert to fraction form
    8,288.32/12,404.56 = 6,904.32/x
  3. Step 3: Cross multiply
    8,288.32x = 12,404.56 × 6,904.32
  4. Step 4: Simplify right side
    8,288.32x = 85,645,051.70
  5. Step 5: Solve for x
    x = 85,645,051.70/8,288.32
  6. Step 6: Final answer
    x = 10,333.22

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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.