Home / 8,919.75-13,378.56-2,346.45

Finding the Fourth Proportional to 8,919.75, 13,378.56 and 2,346.45

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Solution

The fourth proportional to 8,919.75, 13,378.56 and 2,346.45 is: 3,519.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,919.75 : 13,378.56 = 2,346.45 : x
  2. Step 2: Convert to fraction form
    8,919.75/13,378.56 = 2,346.45/x
  3. Step 3: Cross multiply
    8,919.75x = 13,378.56 × 2,346.45
  4. Step 4: Simplify right side
    8,919.75x = 31,392,122.11
  5. Step 5: Solve for x
    x = 31,392,122.11/8,919.75
  6. Step 6: Final answer
    x = 3,519.39

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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.