Home / 13,956.10-20,932.44-5,188.66

Finding the Fourth Proportional to 13,956.10, 20,932.44 and 5,188.66

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Solution

The fourth proportional to 13,956.10, 20,932.44 and 5,188.66 is: 7,782.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,956.10 : 20,932.44 = 5,188.66 : x
  2. Step 2: Convert to fraction form
    13,956.10/20,932.44 = 5,188.66/x
  3. Step 3: Cross multiply
    13,956.10x = 20,932.44 × 5,188.66
  4. Step 4: Simplify right side
    13,956.10x = 108,611,314.13
  5. Step 5: Solve for x
    x = 108,611,314.13/13,956.10
  6. Step 6: Final answer
    x = 7,782.35

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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.