Home / 12,563.92-18,839.80-4,242.32

Finding the Fourth Proportional to 12,563.92, 18,839.80 and 4,242.32

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Solution

The fourth proportional to 12,563.92, 18,839.80 and 4,242.32 is: 6,361.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,563.92 : 18,839.80 = 4,242.32 : x
  2. Step 2: Convert to fraction form
    12,563.92/18,839.80 = 4,242.32/x
  3. Step 3: Cross multiply
    12,563.92x = 18,839.80 × 4,242.32
  4. Step 4: Simplify right side
    12,563.92x = 79,924,460.34
  5. Step 5: Solve for x
    x = 79,924,460.34/12,563.92
  6. Step 6: Final answer
    x = 6,361.43

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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.