Home / 14,840.85-20,480.37-8,126.90

Finding the Fourth Proportional to 14,840.85, 20,480.37 and 8,126.90

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Solution

The fourth proportional to 14,840.85, 20,480.37 and 8,126.90 is: 11,215.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,840.85 : 20,480.37 = 8,126.90 : x
  2. Step 2: Convert to fraction form
    14,840.85/20,480.37 = 8,126.90/x
  3. Step 3: Cross multiply
    14,840.85x = 20,480.37 × 8,126.90
  4. Step 4: Simplify right side
    14,840.85x = 166,441,816.55
  5. Step 5: Solve for x
    x = 166,441,816.55/14,840.85
  6. Step 6: Final answer
    x = 11,215.11

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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.