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Finding the Fourth Proportional to 8,012.99, 12,019.52 and 2,169.62

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Solution

The fourth proportional to 8,012.99, 12,019.52 and 2,169.62 is: 3,254.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,012.99 : 12,019.52 = 2,169.62 : x
  2. Step 2: Convert to fraction form
    8,012.99/12,019.52 = 2,169.62/x
  3. Step 3: Cross multiply
    8,012.99x = 12,019.52 × 2,169.62
  4. Step 4: Simplify right side
    8,012.99x = 26,077,781.38
  5. Step 5: Solve for x
    x = 26,077,781.38/8,012.99
  6. Step 6: Final answer
    x = 3,254.44

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Half scale
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Double scale
Find fourth proportional to 8,013.99, 12,021.02 and 2,170.62
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.