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Finding the Fourth Proportional to 8,000.49, 12,007.15 and 3,618.32

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Solution

The fourth proportional to 8,000.49, 12,007.15 and 3,618.32 is: 5,430.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,000.49 : 12,007.15 = 3,618.32 : x
  2. Step 2: Convert to fraction form
    8,000.49/12,007.15 = 3,618.32/x
  3. Step 3: Cross multiply
    8,000.49x = 12,007.15 × 3,618.32
  4. Step 4: Simplify right side
    8,000.49x = 43,445,710.99
  5. Step 5: Solve for x
    x = 43,445,710.99/8,000.49
  6. Step 6: Final answer
    x = 5,430.38

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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.