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Finding the Fourth Proportional to 8,000.61, 12,026.75 and 7,418.31

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Solution

The fourth proportional to 8,000.61, 12,026.75 and 7,418.31 is: 11,151.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,000.61 : 12,026.75 = 7,418.31 : x
  2. Step 2: Convert to fraction form
    8,000.61/12,026.75 = 7,418.31/x
  3. Step 3: Cross multiply
    8,000.61x = 12,026.75 × 7,418.31
  4. Step 4: Simplify right side
    8,000.61x = 89,218,122.70
  5. Step 5: Solve for x
    x = 89,218,122.70/8,000.61
  6. Step 6: Final answer
    x = 11,151.42

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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.