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Finding the Fourth Proportional to 13,048.01, 18,018.21 and 8,340.49

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Solution

The fourth proportional to 13,048.01, 18,018.21 and 8,340.49 is: 11,517.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,048.01 : 18,018.21 = 8,340.49 : x
  2. Step 2: Convert to fraction form
    13,048.01/18,018.21 = 8,340.49/x
  3. Step 3: Cross multiply
    13,048.01x = 18,018.21 × 8,340.49
  4. Step 4: Simplify right side
    13,048.01x = 150,280,754.12
  5. Step 5: Solve for x
    x = 150,280,754.12/13,048.01
  6. Step 6: Final answer
    x = 11,517.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.