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Finding the Fourth Proportional to 8,392.48, 12,578.94 and 4,499.68

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Solution

The fourth proportional to 8,392.48, 12,578.94 and 4,499.68 is: 6,744.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,392.48 : 12,578.94 = 4,499.68 : x
  2. Step 2: Convert to fraction form
    8,392.48/12,578.94 = 4,499.68/x
  3. Step 3: Cross multiply
    8,392.48x = 12,578.94 × 4,499.68
  4. Step 4: Simplify right side
    8,392.48x = 56,601,204.74
  5. Step 5: Solve for x
    x = 56,601,204.74/8,392.48
  6. Step 6: Final answer
    x = 6,744.28

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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.