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Finding the Fourth Proportional to 8,913.83, 13,371.06 and 4,231.43

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Solution

The fourth proportional to 8,913.83, 13,371.06 and 4,231.43 is: 6,347.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,913.83 : 13,371.06 = 4,231.43 : x
  2. Step 2: Convert to fraction form
    8,913.83/13,371.06 = 4,231.43/x
  3. Step 3: Cross multiply
    8,913.83x = 13,371.06 × 4,231.43
  4. Step 4: Simplify right side
    8,913.83x = 56,578,735.23
  5. Step 5: Solve for x
    x = 56,578,735.23/8,913.83
  6. Step 6: Final answer
    x = 6,347.29

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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.