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Finding the Fourth Proportional to 8,490.33, 12,742.53 and 4,333.41

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Solution

The fourth proportional to 8,490.33, 12,742.53 and 4,333.41 is: 6,503.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,490.33 : 12,742.53 = 4,333.41 : x
  2. Step 2: Convert to fraction form
    8,490.33/12,742.53 = 4,333.41/x
  3. Step 3: Cross multiply
    8,490.33x = 12,742.53 × 4,333.41
  4. Step 4: Simplify right side
    8,490.33x = 55,218,606.93
  5. Step 5: Solve for x
    x = 55,218,606.93/8,490.33
  6. Step 6: Final answer
    x = 6,503.71

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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.