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Finding the Fourth Proportional to 8,493.90, 12,683.62 and 6,936.94

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Solution

The fourth proportional to 8,493.90, 12,683.62 and 6,936.94 is: 10,358.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,493.90 : 12,683.62 = 6,936.94 : x
  2. Step 2: Convert to fraction form
    8,493.90/12,683.62 = 6,936.94/x
  3. Step 3: Cross multiply
    8,493.90x = 12,683.62 × 6,936.94
  4. Step 4: Simplify right side
    8,493.90x = 87,985,535.45
  5. Step 5: Solve for x
    x = 87,985,535.45/8,493.90
  6. Step 6: Final answer
    x = 10,358.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.