Home / 14,700.24-20,286.72-8,414.64

Finding the Fourth Proportional to 14,700.24, 20,286.72 and 8,414.64

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Solution

The fourth proportional to 14,700.24, 20,286.72 and 8,414.64 is: 11,612.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,700.24 : 20,286.72 = 8,414.64 : x
  2. Step 2: Convert to fraction form
    14,700.24/20,286.72 = 8,414.64/x
  3. Step 3: Cross multiply
    14,700.24x = 20,286.72 × 8,414.64
  4. Step 4: Simplify right side
    14,700.24x = 170,705,445.58
  5. Step 5: Solve for x
    x = 170,705,445.58/14,700.24
  6. Step 6: Final answer
    x = 11,612.43

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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.