Home / 13,305.83-18,369.54-8,835.69

Finding the Fourth Proportional to 13,305.83, 18,369.54 and 8,835.69

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Solution

The fourth proportional to 13,305.83, 18,369.54 and 8,835.69 is: 12,198.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305.83 : 18,369.54 = 8,835.69 : x
  2. Step 2: Convert to fraction form
    13,305.83/18,369.54 = 8,835.69/x
  3. Step 3: Cross multiply
    13,305.83x = 18,369.54 × 8,835.69
  4. Step 4: Simplify right side
    13,305.83x = 162,307,560.88
  5. Step 5: Solve for x
    x = 162,307,560.88/13,305.83
  6. Step 6: Final answer
    x = 12,198.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.