Home / 16,812.60-25,221.96-5,718.72

Finding the Fourth Proportional to 16,812.60, 25,221.96 and 5,718.72

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Solution

The fourth proportional to 16,812.60, 25,221.96 and 5,718.72 is: 8,579.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,812.60 : 25,221.96 = 5,718.72 : x
  2. Step 2: Convert to fraction form
    16,812.60/25,221.96 = 5,718.72/x
  3. Step 3: Cross multiply
    16,812.60x = 25,221.96 × 5,718.72
  4. Step 4: Simplify right side
    16,812.60x = 144,237,327.09
  5. Step 5: Solve for x
    x = 144,237,327.09/16,812.60
  6. Step 6: Final answer
    x = 8,579.12

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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.