Home / 17,117.40-25,697.24-8,120.11

Finding the Fourth Proportional to 17,117.40, 25,697.24 and 8,120.11

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Solution

The fourth proportional to 17,117.40, 25,697.24 and 8,120.11 is: 12,190.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,117.40 : 25,697.24 = 8,120.11 : x
  2. Step 2: Convert to fraction form
    17,117.40/25,697.24 = 8,120.11/x
  3. Step 3: Cross multiply
    17,117.40x = 25,697.24 × 8,120.11
  4. Step 4: Simplify right side
    17,117.40x = 208,664,511.86
  5. Step 5: Solve for x
    x = 208,664,511.86/17,117.40
  6. Step 6: Final answer
    x = 12,190.20

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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.