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Finding the Fourth Proportional to 8,672.32, 13,004.83 and 6,317.65

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Solution

The fourth proportional to 8,672.32, 13,004.83 and 6,317.65 is: 9,473.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,672.32 : 13,004.83 = 6,317.65 : x
  2. Step 2: Convert to fraction form
    8,672.32/13,004.83 = 6,317.65/x
  3. Step 3: Cross multiply
    8,672.32x = 13,004.83 × 6,317.65
  4. Step 4: Simplify right side
    8,672.32x = 82,159,964.25
  5. Step 5: Solve for x
    x = 82,159,964.25/8,672.32
  6. Step 6: Final answer
    x = 9,473.82

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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.