Home / 13,937.32-20,905.84-3,548.96

Finding the Fourth Proportional to 13,937.32, 20,905.84 and 3,548.96

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Solution

The fourth proportional to 13,937.32, 20,905.84 and 3,548.96 is: 5,323.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,937.32 : 20,905.84 = 3,548.96 : x
  2. Step 2: Convert to fraction form
    13,937.32/20,905.84 = 3,548.96/x
  3. Step 3: Cross multiply
    13,937.32x = 20,905.84 × 3,548.96
  4. Step 4: Simplify right side
    13,937.32x = 74,193,989.93
  5. Step 5: Solve for x
    x = 74,193,989.93/13,937.32
  6. Step 6: Final answer
    x = 5,323.40

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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.