Home / 14,212.72-21,319.49-4,351.78

Finding the Fourth Proportional to 14,212.72, 21,319.49 and 4,351.78

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Solution

The fourth proportional to 14,212.72, 21,319.49 and 4,351.78 is: 6,527.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,212.72 : 21,319.49 = 4,351.78 : x
  2. Step 2: Convert to fraction form
    14,212.72/21,319.49 = 4,351.78/x
  3. Step 3: Cross multiply
    14,212.72x = 21,319.49 × 4,351.78
  4. Step 4: Simplify right side
    14,212.72x = 92,777,730.19
  5. Step 5: Solve for x
    x = 92,777,730.19/14,212.72
  6. Step 6: Final answer
    x = 6,527.80

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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.