Home / 13,835.56-20,758.20-8,635.36

Finding the Fourth Proportional to 13,835.56, 20,758.20 and 8,635.36

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Solution

The fourth proportional to 13,835.56, 20,758.20 and 8,635.36 is: 12,956.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,835.56 : 20,758.20 = 8,635.36 : x
  2. Step 2: Convert to fraction form
    13,835.56/20,758.20 = 8,635.36/x
  3. Step 3: Cross multiply
    13,835.56x = 20,758.20 × 8,635.36
  4. Step 4: Simplify right side
    13,835.56x = 179,254,529.95
  5. Step 5: Solve for x
    x = 179,254,529.95/13,835.56
  6. Step 6: Final answer
    x = 12,956.07

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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.