Home / 18,974.06-28,457.73-5,124.14

Finding the Fourth Proportional to 18,974.06, 28,457.73 and 5,124.14

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Solution

The fourth proportional to 18,974.06, 28,457.73 and 5,124.14 is: 7,685.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,974.06 : 28,457.73 = 5,124.14 : x
  2. Step 2: Convert to fraction form
    18,974.06/28,457.73 = 5,124.14/x
  3. Step 3: Cross multiply
    18,974.06x = 28,457.73 × 5,124.14
  4. Step 4: Simplify right side
    18,974.06x = 145,821,392.60
  5. Step 5: Solve for x
    x = 145,821,392.60/18,974.06
  6. Step 6: Final answer
    x = 7,685.30

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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.