Home / 16,906.85-25,360.28-8,139.65

Finding the Fourth Proportional to 16,906.85, 25,360.28 and 8,139.65

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Solution

The fourth proportional to 16,906.85, 25,360.28 and 8,139.65 is: 12,209.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,906.85 : 25,360.28 = 8,139.65 : x
  2. Step 2: Convert to fraction form
    16,906.85/25,360.28 = 8,139.65/x
  3. Step 3: Cross multiply
    16,906.85x = 25,360.28 × 8,139.65
  4. Step 4: Simplify right side
    16,906.85x = 206,423,762.40
  5. Step 5: Solve for x
    x = 206,423,762.40/16,906.85
  6. Step 6: Final answer
    x = 12,209.48

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1.5x scale

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.