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Finding the Fourth Proportional to 8,976.48, 12,389.02 and 6,847.99

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Solution

The fourth proportional to 8,976.48, 12,389.02 and 6,847.99 is: 9,451.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,976.48 : 12,389.02 = 6,847.99 : x
  2. Step 2: Convert to fraction form
    8,976.48/12,389.02 = 6,847.99/x
  3. Step 3: Cross multiply
    8,976.48x = 12,389.02 × 6,847.99
  4. Step 4: Simplify right side
    8,976.48x = 84,839,906.67
  5. Step 5: Solve for x
    x = 84,839,906.67/8,976.48
  6. Step 6: Final answer
    x = 9,451.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.