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Finding the Fourth Proportional to 13,336.99, 20,018.03 and 6,767.89

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Solution

The fourth proportional to 13,336.99, 20,018.03 and 6,767.89 is: 10,158.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,336.99 : 20,018.03 = 6,767.89 : x
  2. Step 2: Convert to fraction form
    13,336.99/20,018.03 = 6,767.89/x
  3. Step 3: Cross multiply
    13,336.99x = 20,018.03 × 6,767.89
  4. Step 4: Simplify right side
    13,336.99x = 135,479,825.06
  5. Step 5: Solve for x
    x = 135,479,825.06/13,336.99
  6. Step 6: Final answer
    x = 10,158.20

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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.