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Finding the Fourth Proportional to 8,324.72, 12,484.64 and 6,860.24

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Solution

The fourth proportional to 8,324.72, 12,484.64 and 6,860.24 is: 10,288.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,324.72 : 12,484.64 = 6,860.24 : x
  2. Step 2: Convert to fraction form
    8,324.72/12,484.64 = 6,860.24/x
  3. Step 3: Cross multiply
    8,324.72x = 12,484.64 × 6,860.24
  4. Step 4: Simplify right side
    8,324.72x = 85,647,626.71
  5. Step 5: Solve for x
    x = 85,647,626.71/8,324.72
  6. Step 6: Final answer
    x = 10,288.35

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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.