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Finding the Fourth Proportional to 8,612.91, 12,925.17 and 3,683.70

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Solution

The fourth proportional to 8,612.91, 12,925.17 and 3,683.70 is: 5,528.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,612.91 : 12,925.17 = 3,683.70 : x
  2. Step 2: Convert to fraction form
    8,612.91/12,925.17 = 3,683.70/x
  3. Step 3: Cross multiply
    8,612.91x = 12,925.17 × 3,683.70
  4. Step 4: Simplify right side
    8,612.91x = 47,612,448.73
  5. Step 5: Solve for x
    x = 47,612,448.73/8,612.91
  6. Step 6: Final answer
    x = 5,528.03

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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.