Home / 14,520.28-21,785.88-6,723.64

Finding the Fourth Proportional to 14,520.28, 21,785.88 and 6,723.64

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Solution

The fourth proportional to 14,520.28, 21,785.88 and 6,723.64 is: 10,087.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,520.28 : 21,785.88 = 6,723.64 : x
  2. Step 2: Convert to fraction form
    14,520.28/21,785.88 = 6,723.64/x
  3. Step 3: Cross multiply
    14,520.28x = 21,785.88 × 6,723.64
  4. Step 4: Simplify right side
    14,520.28x = 146,480,414.20
  5. Step 5: Solve for x
    x = 146,480,414.20/14,520.28
  6. Step 6: Final answer
    x = 10,087.99

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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.