Home / 16,809.13-25,217.75-5,121.64

Finding the Fourth Proportional to 16,809.13, 25,217.75 and 5,121.64

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Solution

The fourth proportional to 16,809.13, 25,217.75 and 5,121.64 is: 7,683.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,809.13 : 25,217.75 = 5,121.64 : x
  2. Step 2: Convert to fraction form
    16,809.13/25,217.75 = 5,121.64/x
  3. Step 3: Cross multiply
    16,809.13x = 25,217.75 × 5,121.64
  4. Step 4: Simplify right side
    16,809.13x = 129,156,237.11
  5. Step 5: Solve for x
    x = 129,156,237.11/16,809.13
  6. Step 6: Final answer
    x = 7,683.70

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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.