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Finding the Fourth Proportional to 8,008.61, 12,018.38 and 2,814.48

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Solution

The fourth proportional to 8,008.61, 12,018.38 and 2,814.48 is: 4,223.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,008.61 : 12,018.38 = 2,814.48 : x
  2. Step 2: Convert to fraction form
    8,008.61/12,018.38 = 2,814.48/x
  3. Step 3: Cross multiply
    8,008.61x = 12,018.38 × 2,814.48
  4. Step 4: Simplify right side
    8,008.61x = 33,825,490.14
  5. Step 5: Solve for x
    x = 33,825,490.14/8,008.61
  6. Step 6: Final answer
    x = 4,223.64

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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.