Home / 12,546.86-18,827.58-5,621.36

Finding the Fourth Proportional to 12,546.86, 18,827.58 and 5,621.36

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Solution

The fourth proportional to 12,546.86, 18,827.58 and 5,621.36 is: 8,435.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,546.86 : 18,827.58 = 5,621.36 : x
  2. Step 2: Convert to fraction form
    12,546.86/18,827.58 = 5,621.36/x
  3. Step 3: Cross multiply
    12,546.86x = 18,827.58 × 5,621.36
  4. Step 4: Simplify right side
    12,546.86x = 105,836,605.11
  5. Step 5: Solve for x
    x = 105,836,605.11/12,546.86
  6. Step 6: Final answer
    x = 8,435.31

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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.