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Finding the Fourth Proportional to 13,664.03, 18,860.54 and 8,000.10

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Solution

The fourth proportional to 13,664.03, 18,860.54 and 8,000.10 is: 11,042.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,664.03 : 18,860.54 = 8,000.10 : x
  2. Step 2: Convert to fraction form
    13,664.03/18,860.54 = 8,000.10/x
  3. Step 3: Cross multiply
    13,664.03x = 18,860.54 × 8,000.10
  4. Step 4: Simplify right side
    13,664.03x = 150,886,166.05
  5. Step 5: Solve for x
    x = 150,886,166.05/13,664.03
  6. Step 6: Final answer
    x = 11,042.59

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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.