Home / 12,456.56-18,687.06-4,135.04

Finding the Fourth Proportional to 12,456.56, 18,687.06 and 4,135.04

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Solution

The fourth proportional to 12,456.56, 18,687.06 and 4,135.04 is: 6,203.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,456.56 : 18,687.06 = 4,135.04 : x
  2. Step 2: Convert to fraction form
    12,456.56/18,687.06 = 4,135.04/x
  3. Step 3: Cross multiply
    12,456.56x = 18,687.06 × 4,135.04
  4. Step 4: Simplify right side
    12,456.56x = 77,271,740.58
  5. Step 5: Solve for x
    x = 77,271,740.58/12,456.56
  6. Step 6: Final answer
    x = 6,203.30

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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.