Home / 10,813.92-16,220.88-4,243.20

Finding the Fourth Proportional to 10,813.92, 16,220.88 and 4,243.20

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Solution

The fourth proportional to 10,813.92, 16,220.88 and 4,243.20 is: 6,364.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,813.92 : 16,220.88 = 4,243.20 : x
  2. Step 2: Convert to fraction form
    10,813.92/16,220.88 = 4,243.20/x
  3. Step 3: Cross multiply
    10,813.92x = 16,220.88 × 4,243.20
  4. Step 4: Simplify right side
    10,813.92x = 68,828,438.02
  5. Step 5: Solve for x
    x = 68,828,438.02/10,813.92
  6. Step 6: Final answer
    x = 6,364.80

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Similar ratio
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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.