Home / 14,840.70-20,480.66-8,126.61

Finding the Fourth Proportional to 14,840.70, 20,480.66 and 8,126.61

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Solution

The fourth proportional to 14,840.70, 20,480.66 and 8,126.61 is: 11,214.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,840.70 : 20,480.66 = 8,126.61 : x
  2. Step 2: Convert to fraction form
    14,840.70/20,480.66 = 8,126.61/x
  3. Step 3: Cross multiply
    14,840.70x = 20,480.66 × 8,126.61
  4. Step 4: Simplify right side
    14,840.70x = 166,438,295.73
  5. Step 5: Solve for x
    x = 166,438,295.73/14,840.70
  6. Step 6: Final answer
    x = 11,214.99

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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.