Home / 14,189.70-21,286.80-4,326.72

Finding the Fourth Proportional to 14,189.70, 21,286.80 and 4,326.72

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Solution

The fourth proportional to 14,189.70, 21,286.80 and 4,326.72 is: 6,490.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,189.70 : 21,286.80 = 4,326.72 : x
  2. Step 2: Convert to fraction form
    14,189.70/21,286.80 = 4,326.72/x
  3. Step 3: Cross multiply
    14,189.70x = 21,286.80 × 4,326.72
  4. Step 4: Simplify right side
    14,189.70x = 92,102,023.30
  5. Step 5: Solve for x
    x = 92,102,023.30/14,189.70
  6. Step 6: Final answer
    x = 6,490.77

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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.