Home / 13,798.16-20,689.66-5,469.74

Finding the Fourth Proportional to 13,798.16, 20,689.66 and 5,469.74

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Solution

The fourth proportional to 13,798.16, 20,689.66 and 5,469.74 is: 8,201.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,798.16 : 20,689.66 = 5,469.74 : x
  2. Step 2: Convert to fraction form
    13,798.16/20,689.66 = 5,469.74/x
  3. Step 3: Cross multiply
    13,798.16x = 20,689.66 × 5,469.74
  4. Step 4: Simplify right side
    13,798.16x = 113,167,060.89
  5. Step 5: Solve for x
    x = 113,167,060.89/13,798.16
  6. Step 6: Final answer
    x = 8,201.61

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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.