Home / 12,493.58-18,739.86-3,132.88

Finding the Fourth Proportional to 12,493.58, 18,739.86 and 3,132.88

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Solution

The fourth proportional to 12,493.58, 18,739.86 and 3,132.88 is: 4,699.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,493.58 : 18,739.86 = 3,132.88 : x
  2. Step 2: Convert to fraction form
    12,493.58/18,739.86 = 3,132.88/x
  3. Step 3: Cross multiply
    12,493.58x = 18,739.86 × 3,132.88
  4. Step 4: Simplify right side
    12,493.58x = 58,709,674.00
  5. Step 5: Solve for x
    x = 58,709,674.00/12,493.58
  6. Step 6: Final answer
    x = 4,699.19

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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.