Home / 12,351.72-18,525.84-4,031.88

Finding the Fourth Proportional to 12,351.72, 18,525.84 and 4,031.88

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Solution

The fourth proportional to 12,351.72, 18,525.84 and 4,031.88 is: 6,047.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,351.72 : 18,525.84 = 4,031.88 : x
  2. Step 2: Convert to fraction form
    12,351.72/18,525.84 = 4,031.88/x
  3. Step 3: Cross multiply
    12,351.72x = 18,525.84 × 4,031.88
  4. Step 4: Simplify right side
    12,351.72x = 74,693,963.78
  5. Step 5: Solve for x
    x = 74,693,963.78/12,351.72
  6. Step 6: Final answer
    x = 6,047.25

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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.