Home / 12,546.80-18,827.49-5,621.30

Finding the Fourth Proportional to 12,546.80, 18,827.49 and 5,621.30

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Solution

The fourth proportional to 12,546.80, 18,827.49 and 5,621.30 is: 8,435.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,546.80 : 18,827.49 = 5,621.30 : x
  2. Step 2: Convert to fraction form
    12,546.80/18,827.49 = 5,621.30/x
  3. Step 3: Cross multiply
    12,546.80x = 18,827.49 × 5,621.30
  4. Step 4: Simplify right side
    12,546.80x = 105,834,924.92
  5. Step 5: Solve for x
    x = 105,834,924.92/12,546.80
  6. Step 6: Final answer
    x = 8,435.21

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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.