Home / 12,619.14-18,928.45-4,304.96

Finding the Fourth Proportional to 12,619.14, 18,928.45 and 4,304.96

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Solution

The fourth proportional to 12,619.14, 18,928.45 and 4,304.96 is: 6,457.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,619.14 : 18,928.45 = 4,304.96 : x
  2. Step 2: Convert to fraction form
    12,619.14/18,928.45 = 4,304.96/x
  3. Step 3: Cross multiply
    12,619.14x = 18,928.45 × 4,304.96
  4. Step 4: Simplify right side
    12,619.14x = 81,486,201.83
  5. Step 5: Solve for x
    x = 81,486,201.83/12,619.14
  6. Step 6: Final answer
    x = 6,457.35

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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.