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Finding the Fourth Proportional to 8,011.99, 12,017.01 and 2,169.05

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Solution

The fourth proportional to 8,011.99, 12,017.01 and 2,169.05 is: 3,253.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,011.99 : 12,017.01 = 2,169.05 : x
  2. Step 2: Convert to fraction form
    8,011.99/12,017.01 = 2,169.05/x
  3. Step 3: Cross multiply
    8,011.99x = 12,017.01 × 2,169.05
  4. Step 4: Simplify right side
    8,011.99x = 26,065,495.54
  5. Step 5: Solve for x
    x = 26,065,495.54/8,011.99
  6. Step 6: Final answer
    x = 3,253.31

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Half scale
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Double scale
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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.