Home / 8,253.96-12,378.43-2,988.35

Finding the Fourth Proportional to 8,253.96, 12,378.43 and 2,988.35

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Solution

The fourth proportional to 8,253.96, 12,378.43 and 2,988.35 is: 4,481.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,253.96 : 12,378.43 = 2,988.35 : x
  2. Step 2: Convert to fraction form
    8,253.96/12,378.43 = 2,988.35/x
  3. Step 3: Cross multiply
    8,253.96x = 12,378.43 × 2,988.35
  4. Step 4: Simplify right side
    8,253.96x = 36,991,081.29
  5. Step 5: Solve for x
    x = 36,991,081.29/8,253.96
  6. Step 6: Final answer
    x = 4,481.62

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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.