Home / 8,919.89-13,371.56-3,294.45

Finding the Fourth Proportional to 8,919.89, 13,371.56 and 3,294.45

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Solution

The fourth proportional to 8,919.89, 13,371.56 and 3,294.45 is: 4,938.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,919.89 : 13,371.56 = 3,294.45 : x
  2. Step 2: Convert to fraction form
    8,919.89/13,371.56 = 3,294.45/x
  3. Step 3: Cross multiply
    8,919.89x = 13,371.56 × 3,294.45
  4. Step 4: Simplify right side
    8,919.89x = 44,051,919.37
  5. Step 5: Solve for x
    x = 44,051,919.37/8,919.89
  6. Step 6: Final answer
    x = 4,938.62

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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.