Home / 12,563.25-18,844.95-4,243.31

Finding the Fourth Proportional to 12,563.25, 18,844.95 and 4,243.31

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Solution

The fourth proportional to 12,563.25, 18,844.95 and 4,243.31 is: 6,364.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,563.25 : 18,844.95 = 4,243.31 : x
  2. Step 2: Convert to fraction form
    12,563.25/18,844.95 = 4,243.31/x
  3. Step 3: Cross multiply
    12,563.25x = 18,844.95 × 4,243.31
  4. Step 4: Simplify right side
    12,563.25x = 79,964,849.34
  5. Step 5: Solve for x
    x = 79,964,849.34/12,563.25
  6. Step 6: Final answer
    x = 6,364.98

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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.