Home / 14,520.72-21,780.64-4,132.48

Finding the Fourth Proportional to 14,520.72, 21,780.64 and 4,132.48

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Solution

The fourth proportional to 14,520.72, 21,780.64 and 4,132.48 is: 6,198.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,520.72 : 21,780.64 = 4,132.48 : x
  2. Step 2: Convert to fraction form
    14,520.72/21,780.64 = 4,132.48/x
  3. Step 3: Cross multiply
    14,520.72x = 21,780.64 × 4,132.48
  4. Step 4: Simplify right side
    14,520.72x = 90,008,059.19
  5. Step 5: Solve for x
    x = 90,008,059.19/14,520.72
  6. Step 6: Final answer
    x = 6,198.59

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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.