Home / 15,072.66-20,800.41-8,358.36

Finding the Fourth Proportional to 15,072.66, 20,800.41 and 8,358.36

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Solution

The fourth proportional to 15,072.66, 20,800.41 and 8,358.36 is: 11,534.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,072.66 : 20,800.41 = 8,358.36 : x
  2. Step 2: Convert to fraction form
    15,072.66/20,800.41 = 8,358.36/x
  3. Step 3: Cross multiply
    15,072.66x = 20,800.41 × 8,358.36
  4. Step 4: Simplify right side
    15,072.66x = 173,857,314.93
  5. Step 5: Solve for x
    x = 173,857,314.93/15,072.66
  6. Step 6: Final answer
    x = 11,534.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.