Home / 12,643.02-18,964.26-3,877.74

Finding the Fourth Proportional to 12,643.02, 18,964.26 and 3,877.74

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Solution

The fourth proportional to 12,643.02, 18,964.26 and 3,877.74 is: 5,816.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,643.02 : 18,964.26 = 3,877.74 : x
  2. Step 2: Convert to fraction form
    12,643.02/18,964.26 = 3,877.74/x
  3. Step 3: Cross multiply
    12,643.02x = 18,964.26 × 3,877.74
  4. Step 4: Simplify right side
    12,643.02x = 73,538,469.57
  5. Step 5: Solve for x
    x = 73,538,469.57/12,643.02
  6. Step 6: Final answer
    x = 5,816.53

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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.