Home / 8,631.09-12,947.85-3,365.15

Finding the Fourth Proportional to 8,631.09, 12,947.85 and 3,365.15

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Solution

The fourth proportional to 8,631.09, 12,947.85 and 3,365.15 is: 5,048.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,631.09 : 12,947.85 = 3,365.15 : x
  2. Step 2: Convert to fraction form
    8,631.09/12,947.85 = 3,365.15/x
  3. Step 3: Cross multiply
    8,631.09x = 12,947.85 × 3,365.15
  4. Step 4: Simplify right side
    8,631.09x = 43,571,392.69
  5. Step 5: Solve for x
    x = 43,571,392.69/8,631.09
  6. Step 6: Final answer
    x = 5,048.19

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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.