Home / 14,768.64-20,380.88-8,054.21

Finding the Fourth Proportional to 14,768.64, 20,380.88 and 8,054.21

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Solution

The fourth proportional to 14,768.64, 20,380.88 and 8,054.21 is: 11,114.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,768.64 : 20,380.88 = 8,054.21 : x
  2. Step 2: Convert to fraction form
    14,768.64/20,380.88 = 8,054.21/x
  3. Step 3: Cross multiply
    14,768.64x = 20,380.88 × 8,054.21
  4. Step 4: Simplify right side
    14,768.64x = 164,151,958.59
  5. Step 5: Solve for x
    x = 164,151,958.59/14,768.64
  6. Step 6: Final answer
    x = 11,114.90

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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.