Home / 14,520.64-21,785.20-4,659.70

Finding the Fourth Proportional to 14,520.64, 21,785.20 and 4,659.70

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Solution

The fourth proportional to 14,520.64, 21,785.20 and 4,659.70 is: 6,990.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,520.64 : 21,785.20 = 4,659.70 : x
  2. Step 2: Convert to fraction form
    14,520.64/21,785.20 = 4,659.70/x
  3. Step 3: Cross multiply
    14,520.64x = 21,785.20 × 4,659.70
  4. Step 4: Simplify right side
    14,520.64x = 101,512,496.44
  5. Step 5: Solve for x
    x = 101,512,496.44/14,520.64
  6. Step 6: Final answer
    x = 6,990.91

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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.