Home / 16,809.12-25,217.34-5,122.02

Finding the Fourth Proportional to 16,809.12, 25,217.34 and 5,122.02

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Solution

The fourth proportional to 16,809.12, 25,217.34 and 5,122.02 is: 7,684.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,809.12 : 25,217.34 = 5,122.02 : x
  2. Step 2: Convert to fraction form
    16,809.12/25,217.34 = 5,122.02/x
  3. Step 3: Cross multiply
    16,809.12x = 25,217.34 × 5,122.02
  4. Step 4: Simplify right side
    16,809.12x = 129,163,719.83
  5. Step 5: Solve for x
    x = 129,163,719.83/16,809.12
  6. Step 6: Final answer
    x = 7,684.15

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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.