Home / 12,284.53-18,430.40-3,964.39

Finding the Fourth Proportional to 12,284.53, 18,430.40 and 3,964.39

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Solution

The fourth proportional to 12,284.53, 18,430.40 and 3,964.39 is: 5,947.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,284.53 : 18,430.40 = 3,964.39 : x
  2. Step 2: Convert to fraction form
    12,284.53/18,430.40 = 3,964.39/x
  3. Step 3: Cross multiply
    12,284.53x = 18,430.40 × 3,964.39
  4. Step 4: Simplify right side
    12,284.53x = 73,065,293.46
  5. Step 5: Solve for x
    x = 73,065,293.46/12,284.53
  6. Step 6: Final answer
    x = 5,947.75

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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.