Home / 9,789.28-14,685.92-3,214.80

Finding the Fourth Proportional to 9,789.28, 14,685.92 and 3,214.80

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Solution

The fourth proportional to 9,789.28, 14,685.92 and 3,214.80 is: 4,822.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,789.28 : 14,685.92 = 3,214.80 : x
  2. Step 2: Convert to fraction form
    9,789.28/14,685.92 = 3,214.80/x
  3. Step 3: Cross multiply
    9,789.28x = 14,685.92 × 3,214.80
  4. Step 4: Simplify right side
    9,789.28x = 47,212,295.62
  5. Step 5: Solve for x
    x = 47,212,295.62/9,789.28
  6. Step 6: Final answer
    x = 4,822.86

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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.