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Finding the Fourth Proportional to 13,998, 20,999.16 and 5,234.16

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Solution

The fourth proportional to 13,998, 20,999.16 and 5,234.16 is: 7,852.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,998 : 20,999.16 = 5,234.16 : x
  2. Step 2: Convert to fraction form
    13,998/20,999.16 = 5,234.16/x
  3. Step 3: Cross multiply
    13,998x = 20,999.16 × 5,234.16
  4. Step 4: Simplify right side
    13,998x = 109,912,963.31
  5. Step 5: Solve for x
    x = 109,912,963.31/13,998
  6. Step 6: Final answer
    x = 7,852.05

Related Problems

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Double scale
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Similar ratio
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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.