Home / 12,619.79-18,936.52-4,727.68

Finding the Fourth Proportional to 12,619.79, 18,936.52 and 4,727.68

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Solution

The fourth proportional to 12,619.79, 18,936.52 and 4,727.68 is: 7,094.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,619.79 : 18,936.52 = 4,727.68 : x
  2. Step 2: Convert to fraction form
    12,619.79/18,936.52 = 4,727.68/x
  3. Step 3: Cross multiply
    12,619.79x = 18,936.52 × 4,727.68
  4. Step 4: Simplify right side
    12,619.79x = 89,525,806.87
  5. Step 5: Solve for x
    x = 89,525,806.87/12,619.79
  6. Step 6: Final answer
    x = 7,094.08

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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.