Home / 8,269.28-12,403.89-2,113.28

Finding the Fourth Proportional to 8,269.28, 12,403.89 and 2,113.28

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Solution

The fourth proportional to 8,269.28, 12,403.89 and 2,113.28 is: 3,169.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,269.28 : 12,403.89 = 2,113.28 : x
  2. Step 2: Convert to fraction form
    8,269.28/12,403.89 = 2,113.28/x
  3. Step 3: Cross multiply
    8,269.28x = 12,403.89 × 2,113.28
  4. Step 4: Simplify right side
    8,269.28x = 26,212,830.64
  5. Step 5: Solve for x
    x = 26,212,830.64/8,269.28
  6. Step 6: Final answer
    x = 3,169.91

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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.