Home / 12,254.58-18,381.81-3,489.47

Finding the Fourth Proportional to 12,254.58, 18,381.81 and 3,489.47

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Solution

The fourth proportional to 12,254.58, 18,381.81 and 3,489.47 is: 5,234.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,254.58 : 18,381.81 = 3,489.47 : x
  2. Step 2: Convert to fraction form
    12,254.58/18,381.81 = 3,489.47/x
  3. Step 3: Cross multiply
    12,254.58x = 18,381.81 × 3,489.47
  4. Step 4: Simplify right side
    12,254.58x = 64,142,682.63
  5. Step 5: Solve for x
    x = 64,142,682.63/12,254.58
  6. Step 6: Final answer
    x = 5,234.18

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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.